Too big!

Kalena • Me and my fiance made the decision to start trying about a week ago. We are hoping to conceive really soon even though the likelihood hood isn`t very high.
When me and my fiancee have sex, most of the time because he is really big, he will hit my cervix. It's REALLY painful and discouraging. I will usually try to take it but end up crying which is a huge turn off to us both and it's getting to the point where I don't want to have sex with him he cause it hurts and he doesn't want to because he hates hurting me. As soon as I say Ow he pulls out and won't go anymore even when I tell him to... I don't know how to handle it especially because we are TTC. Any advice?