TMI but this happening to you guys

N • NV
My husband and I are pregnant and we still have sex! Thank god! 
I noticed in my first trimester if I was on top I would get my usual orgasms but now that I'm 21 weeks being a top with the same position for my orgasm i notice it's hard to find my spot. I never had any trouble trying to achieve an orgasm with my husband but I'm wondering if pregnancy is affecting my way of achieving my orgasms. You ladies have this problem at all?