Sex position gone wrong.

Abbie • In love with the most amazing person on this planet. 💏🔐💕
Okay me and my boyfriend used to always do the spooning sex position and I loved it so much but here lately when we tried he always ends up slipping in the wrong hole and now I'm scared to do it because it hurts. I don't think we do anything different. Any pointers to keep this from happening again?