Low sex drive?

Me and my partner have been ttc for 6 months now. Recently my sex drive has completely gone. The thought of going to bed tonight makes me feel urgh cos I know he’s going to expect it as I refused last night and he has a very high drive. I just can’t be arsed. I love him and obviously find him attractive, sex just isn’t doing anything for me at the moment and I see it as a waste of energy. I think it’s maybe because we’ve been trying for a baby so much that it’s now become boring and a chore.

I’m thinking of falling asleep now while he’s on his game just so I know he won’t wake me up to expect sex.

Also lately I’ve found myself imagining him having sex with a more attractive women while we’re having sex, so that I can feel abit more turned on but I think that’s because I’ve put weight on over Christmas and I’m not feeling attractive at all at the moment and think how can he even fancy me?