Not a story but I NEED HELP!

I remembered of a fic that I read a year or two ago and it made me want to read it again.. The problem is I cannot remember the author or the title of it.

But I do know that is : a dean/OC; OC is a hunter; she is pregnant at some point in the fic; also there is a incubus involved – OC volunteers to be a bait to the incubus (so Sam and Dean can kill it) and she „ends up" pregnant but Castiel eventually tells her that the baby isn`t evil, is not Incubus`s child.

That is everything I remember of. I reaaaally want to read it again. And if you know what I am talking about please write it in the comments.

thanks