Anyone else have trouble getting in the mood/achieving orgasm?

I'm currently 6w5d, my partner has noticed lately that we don't really have sex as much since we found out. We usually had sex every day, now it's every couple of days.

Sex kind of hurts, as I usually get cramps after and it feels smaller down there. Also, it's nearly impossible for me to achieve orgasm even with things I normally enjoy that we do. Other than that, I feel way too tired to do anything after like 8pm.

My partner understands and isn't pressuring me regarding this, but I was wondering if this is normal.

Thank you!