It had been 4 weeks since Amy and Sheldon's encounter on her couch. The words that Sheldon said right after the encounter had not been repeated by either party. That was okay, this was Sheldon and Amy, there was no reason to be monotonous. They both knew how they felt about each other. Nothing had changed between them besides the level of intimacy, which besides the first two times were scheduled beforehand and on a weekly basis, as specified in the new addendums to the relationship agreement.

Leonard and Penny had also found out what happened between them. Leonard walked into the living room while Amy and Sheldon were Skyping, scheduling their amorous activities. He confronted Sheldon afterwards and the truth ended up coming out. Leonard was proud and didn't tease him at all. Sheldon made Leonard promise not to tell Howard or Raj, he knew they would tease him. Penny and Amy had a similar conversation, after Leonard told Penny what happened. Amy didn't want to give up the detailed information that Penny demanded. It was too special to her.

It was now the third Thursday of the month, date night. Sheldon met Amy at her apartment, she made his favorite dinner and they were going to watch a movie. They hadn't scheduled any other 'weekly activities' for the night and Amy wondered why but chose to leave it alone.

"So, how was work today? Amy asked as they ate in silence for quite a few minutes.

"It was fine."

"Is there something wrong? You have been very quiet…and we didn't did schedule our weekly session." Amy wasn't going to mention it, but she felt like there was something wrong.

"No, there is nothing wrong, I am sorry I am quiet. I've been working on an equation that won't balance and it's been consuming me." Sheldon smiled, as if to reassure her.

It seemed plausible enough to Amy and immediately went back to eating her dinner without a second thought. Sheldon interrupted her thoughts.

"Why would we schedule coitus this week, you are on your menses?" Sheldon asked puzzled. She knew they had agreed to forfeit the week that the girlfriend experienced her monthly cycle.

Amy's face was ghost white, eyes wide, not blinking. Sheldon saw her reaction was worried she was choking.

"Amy, are you alright? Do you need me to help you?"

"No Sheldon, I am not choking. I am not on my menses, though I should be. I was supposed to start 4 days ago." Amy had regained control of her expression, though was still a little worried. They always took appropriate measures, so there had to be another reason.

"You said you have been stressed at work, that's probably all it is". Amy had also accepted that as a valid reason, she has been late from stress before, meanwhile Sheldon was frantically searching his mind, back to every encounter they had.

"THE COUCH!" Sheldon blurted out.

Amy looked back at the couch quickly. "What about the couch?" Realizing it hadn't sprouted legs and walked away, Amy looked back to her Sweet Babboo's face wondering where he was going with this.

"THE COUCH!" Sheldon repeated, pointing this time.

"Sheldon, I am going to need more than that. I don't know what you are talking about."

"THE COUCH! We…the couch…we…we…we..the couch, the couch." Sheldon couldn't put a sentence together after he realized that they, in fact, had not taken precautions when Amy mauled him like a lioness that day.

"Sheldon, calm down, calm down. You have to actually put words together, I can't understand you." Amy moved over next to Sheldon so that could look him directly in the face.

Sheldon was practically hyperventilating but he had to express something coherent. "The couch, that day when you asked me if I regretted our first time, we..we…we didn't."

That was all he could get out, his mind was scrambling to organize. Amy's mind was piecing together the fragments Sheldon was spitting out.

"Oh good lord, Oh good lord, OH GOOD LORD!" Amy screamed and noticed she was starting to sound like Sheldon.

"How could we have been so stupid?!" Amy was on the verge of tears.

"WE?! You are the one that thought this was some kind of rodeo." Sheldon didn't want to take responsibility for forgetting something.

"YES, WE! You were there, a very willing participant, and nothing is certain right now, I might add." Amy was furious that Sheldon would blame only her for this.

"You're right. I am sorry, I shouldn't have said that." Sheldon was finally regaining control of himself. "We need to find out for sure, go to the drugstore." He added.

"Okay, do you want to stay here?" Amy asked as she picked up her purse.

"Yes, I'll stay here and clean up."

"I'll be back in 15 minutes" Amy walked up to Sheldon. "I need you, no matter what happens, please try to understand that." Her face inches from his.

"I am not going anywhere, Amy. We will deal with whatever happens."

"I love you." Amy was hoping that he would say it back to her but right now he was unpredictable.

"I know… I love you as well. Now stop dragging this out and go." Amy smiled up at him and gave him a peck on the lips.

"I'll be quick." Amy said as she walked out the door.