15 weeks is so so early, and everything changes overnight and life feels like it's all over the place with this new person to look after.
My DD is 8 months and I've struggled back and forth with this with my DH. I go through phases of being so resentful of him because I can't even go to the toilet without sorting out DD, let alone being able to go to the gym or do what I want to do. I resent that he still has his freedom, and I really resent that his body hasn't changed at all.
But I had to take a step back and think about it all and ask myself if it's hormones or if I genuinely fell out of love. The odd thing I found, this seems to appear around my period, I get resentful, question the relationship, go off him, and then a week after my period, it's like a light switch, seeing how much I love him and how great we are. I found it quite scary having those feelings until I noticed a pattern.
Sorry I've rambled - but what im trying to say is it could be hormonal, it's a big change, and caring for a baby is hard work, especially when it feels like you're the only one doing everything.
However, as a PP said, it could genuinely be a time when you're re-evaluating what's best for you and baby. But I wouldn't rush into anything.
Also - everyone expects you be happy constantly and over the moon with your new baby, but it is really really tough. There's good days and bad days but I personally feel that not a lot of people admit that sometimes it's shit. It can be really shit, but that's ok. You're allowed to feel how you're feeling. Some days I could just stare at my daughter all day in absolute awe of her, and other days I really really struggle, especially if she's upset all day or teething. sometimes I need a good cry myself.
It's so so hard, I really hope you're doing ok. Congrats on the baby too 🥰