Disclaimer: I do not own the characters on 'Chicago Fire.' They are owned by NBC and the creators of the show including Dick Wolf.

This is set during Season 2 Episode 22. Matt still proposes to Gabby, however, there is no call out to the building that we see in the episode. There will be other events that occur instead of the building explosion.

Also please note, I'm Australian and the way my sentences are formed may not make sense to the Americans or the other countries. I will try my best to write this story so everyone is on the same page. I have written other FanFiction stories including 'Castle', An Australian drama called 'Rescue Special Ops.' This is, however, my first 'Chicago Fire' FanFiction. So please be nice and read and review!

Enjoy! J

Chapter One:

Matthew Casey and Gabriela Dawson are standing arm in arm in the main entrance to Firehouse 51. Matt then moves away from Gabby and grabs her hand instead. He gazes around the room and notices all of the happy couples; Herrmann and Cindy, Mouch talking to Platt and Chief Boden and Donna. He decides that this is it. This is the day he going to propose to the love of his life. He turns to face her and continues to hold her hand in his.

"Gabriela Dawson. You are the strongest, the most single-minded woman I have ever known. I'm a lucky man to have you in my life. And I want to make sure that we are together forever," He pauses and then kneels down onto one knee and holds out a ring. One of Gabby's hands is covering her mouth while the other is still tightly holding onto Matt's hand. He then continues.

"Will you marry me?" Matt asks, hoping for a positive response. Gabby begins to cry. She has to let it sink in before she is able to answer. But what seems like forever it is only a couple of minutes. She begins to nod her head and the tears flow even more freely.

"Yes. Matthew Casey, yes I will marry you." Gabby manages to say before she ends up in hysterics. Matt smiles back up at her, happy with the answer she has given. She watches as the love of her life puts the ring over her finger. Matt manages to pull himself up off the ground. He stares at Gabby momentarily before he leans in and gives his fiancée a deep and meaningful kiss. He pulls back and puts his forehead against hers and smiles.

"Thank you for making me the happiest man alive. I love you so much Gabby. Or should I say fiancée?" Matt can't contain his smile. He leans down and gives Gabby another deep kiss. Gabby is the one that pulls back this time.

"I love you too. My fiancée Matthew Casey. We need to tell everyone. And we will tell them all right now. I want the whole world to know that, Matthew Casey, is my fiancée." She practically begs him. He nods and wraps his arm around her neck.

"And I want everyone to know that my girl is my fiancée." He lightly kisses her head and turns to face everyone.

"Can I please have your attention everyone?!" Matt yells. Everyone in the firehouse turns to face the couple. Everyone looked confused as to why he was asking for their attention.

"Matt and I have an announcement to make." Gabby begins but then gives a small pause. She can see Shay in the corner of her eye giving her a wicked smile. She ignores it then continues.

"Matt and I are engaged!" Gabby says happily while holding up her hand that contains the sparkling engagement ring. Everyone in the room begins to cheer with excitement. Shay and Severide are the first people to come up and congratulate the happy couple. Shay hugs Gabby first and Severide hugs Matt then they swap and do the opposite.

"I'm so happy for you guys. We both knew that you guys were meant to be together." Severide states. Everyone then continues to come up and congratulate the happy couple. After everyone has seen them, Gabby begins to speak again.

"While we have everyone's attention. I have my own announcement to make. I have decided not to pursue the career choice of being a firefighter. I have decided that I will stay with all of you guys at Firehouse 51 as an EMT." Gabby finishes speaking. She gets a puzzled look from everyone in the room. She turns to face Matt and she sees his puzzled look.

"Can we go and talk privately, just you and me?" Matt asks her. She nods. The walk hand-in-hand inside towards the common room. Everyone continued on with their own conversations. Meanwhile, Matt and Gabby stood in the common room.

"Why did you decide to do this? Why didn't you talk about it with me first?" Matt asks, trying not to be furious at his fiancée.

"I thought about my... our future. We're engaged now Matt. I couldn't bear to think that while I'm working at another firehouse, you could be injured or even dead. I wanted to surprise you, I made my own decision because it was the best for both of us. Yes, I wanted to be a firefighter but being engaged to the love of my life is a higher priority. I will still be doing my dream career being an EMT. But at least will be doing it with you right beside me. I love you so much Matt and I don't want our relationship to be compromised. I love you and…" Matt watched in horror as his fiancée collapsed to the ground in the common room. He quickly rushed to her side and kneeled down beside her limp body.

"Gabby. Come on Gabby, wake up baby." Matt began to stroke the side of her face. He ran out to the main area of the firehouse where everyone was. Shay and Severide were the first to notice Matt and his panicked face.

"Casey! Where is Dawson?" Severide asked his friend. Out of the corner of his eye, Severide could see Shay heading towards the ambulance getting equipment out of the back.

"Something has happened to her. We were talking and then she just collapsed. I don't know what happened." Matt stated.

"Severide! Come and grab the gurney. I will meet you in the common room. Matt. Take me to her." Shay demanded. Kelly ran over to the ambulance and pulled out the gurney. Meanwhile, Matt led Shay into the common room where Gabby lay, still unconscious. Matt immediately moves and kneels down and grabs one of Gabby's hands. Severide and Mills walk in with the gurney. Shay looks at Mills with a puzzled look.

"Figured you could use an extra pair of hands." Mills states. Shay nods at him and continues to work on Gabby. Shay puts the stethoscope into her ears and places the other end onto Dawson's chest. Shay nods her head, happy with what she is hearing.

"Breathing is normal. Mills, you need to get a line in and start an IV and Matt I need you to put this oxygen mask on her. It will help her." Shay demanded. Matt shakily grabs the oxygen mask puts it on Gabby's face. In the corner of his eye, Matt can see Peter putting the IV into Gabby's hand. He is brought back to reality when he hears groaning behind him. He turns around and sees that Gabby is waking up and trying to pull the mask off her face.

"Gabby. You're alright baby. You collapsed at the firehouse." Matt said softly as he stroked the side of Gabby's face. Gabby then manages to lift up one arm place it over her stomach.

"Matt. Baby." Gabby croaks. Matt becomes confused as to what she is talking about. He looks down at her stomach where her arm is draped over. Then it clicks in his head. Pregnant.

"Dawson, are you pregnant?" Shay quickly asks. Gabby nods slowly then her face screws up in pain.

"Hurts so much." Gabby says. Matt's face becomes alert as do everyone else's.

"She is most likely having a miscarriage. Guys, help me get her up onto the gurney." Shay demands. Matt, Kelly, Peter and Shay lift up the backboard and carefully place it onto the awaiting gurney. The gurney is quickly pushed out of the common room and into the main area of the firehouse where everyone still is. They push the gurney into the awaiting ambulance. Shay and Casey jump into the back of the ambulance with Gabby.

"Drive Severide!" Shay demands. Severide jumps into the driver's side while Mills jumps into the passenger seat. They speed out of the firehouse and head towards Lakeshore. In the back of the ambulance, Shay is keeping an eye on Dawson's vitals while Matt is near her head trying to sooth her.

"Sshh. You're going to be alright baby. Everything is going to be fine." Matt says softly while holding one of Gabby's hands in his own. Tears are streaming down Gabby's face.

"I'm so sorry Matt. I was about to tell you about the baby when I collapsed. I'm sorry I didn't tell you sooner. I love you so much." Gabby replies softly. Her eyes slowly begin to close.

"Stay awake for me Gabby. I love you too." Matt gently taps on the side of Dawson's face. She gently opens her eyes again. The ambulance soon halts to a stop outside Lakeshore Hospital. Severide and Mills come around and open the back of the ambulance. The gurney is quickly pulled out and rushed into the hospital.

"She collapsed. About 4 weeks pregnant, complaining of stomach pains." Shay rattles off the stats to the doctors. They wheel Gabby into a private room. Matt is still standing by her side holding onto her hand tightly. The doctors bring in an ultrasound machine.

"Excuse me sir, you have to leave." The doctor politely asks Matt. He quickly shakes his head.

"No. She's my fiancée. I'm not going anywhere especially if my baby's life is in danger." Matt replies sternly to the doctor. The doctor nods in surrender. He continues to wheel over the ultrasound machine. Matt stands beside Gabby still clutching her small hand in his. He leans down and gives Gabby a light kiss on the head.

"Everything is going to be alright. Our baby is a fighter, just like its mother. I love you." Matt whispered to her.

"I love you too." Gabby whispers back to him. The doctor places the cold gel onto Dawson's stomach and places the ultrasound wand on top of it. He moves it around along her stomach until he finds the baby's heartbeat.

"That is your baby's heartbeat. I can see that you are in fact actually pregnant with twins. However…" The Doctor begins but is quickly cut off.

"No. That isn't possible. My baby can't be dead." Gabby manages to say before she breaks out into hysterics. Matt gathers her up into his arms and gently rocks her. The doctor quietly leaves the room to give them privacy. Gabby sobs into Matt's shoulder. She eventually calms down.

"I'm so sorry Matt. I didn't know that I was pregnant with twins. I was only told that there was only one baby. Oh, babe, I'm so sorry." Gabby speaks gently. Matt softly strokes the back of her head.

"It's alright baby. You couldn't have known. We will get through this together." He says as he tightly holds her hand. The doctor quietly enters the room and speaks up.

"Miss Dawson, Mr Casey. We have to speak about removing the dead foetus. The only option is that we take you up to surgery and do it that way. I can give you a few moments before we take you up if you would like." The doctor explains carefully.

"Take me now. Take me up there now and do it because I can't handle this any longer." Gabby demands. The doctor nods and more nurses begin to file in and prep Gabby for the operation. Matt walks over to Gabby and gives her a deep kiss on the lips.

"Stay safe baby. I will see you later. I will talk to everyone for you. I love you so much." Casey whispers to Gabby. He places his forehead against hers and gives her another kiss.

"Thank you baby. I will see you soon daddy. I love you so much Matt." Gabby whispers back to him. They kiss once more then the nurses start to wheel Gabby away. Matt runs his hand through his hair. What started as a proposal, ended up in Gabby being hospital. This was not how Matt had planned to happen after his proposal. All he wanted is for his fiancée and his other baby to be okay. But now it was time to face the truth and to tell all of their friends what happened to her. He knows that this will be a hard time for both of them but he knew everyone would help them get through this.