I've totally lost it

My baby was born in September. She's been unwell for the majority of the time, so I haven't thought about sex much at all. Honestly we've both just been worried sick about our babygirl and barely put any time an effort into our relationship. We've had sex once in the last 7 months, we flirt here and there but other than that our sex life doesn't exist. I have no interest in having sex ever again, I think I'm more worried about getting pregnant and the possibility of our next child having the same condition. I know there are ways to prevent pregnancy, however i still worry about having another. My boyfriend is all for it. We haven't even spoken about the lack of sex either, everytime I've wanted to bring it up he's been online talking to his friends. Also still feeling odd about having sex with our daughter in the room, plus we have a lodger upstairs and I'm paranoid he can hear everything.

Has anyone else been in the same predicament,?? How did you get the spark back?