Sex while preggers

Jennifer • Mommy of a two year old 💙 and engaged 💘

So my husband and I have sex and I’m on top and every time I get on top my stomach starts tightening up real bad to where I just wanna stop completely. I’m 16w3days can anyone tell me why this might be happening please?

It’s only when I’m on top so basically when I’m doing the work!

P.S I LOVE being on top.