Is it normal??!?

My boyfriend and I were having sex and everything was amazing. We changed the position. We did the position thats in the picture , we've done it before a lot . This time we did, and I was getting a really bad pain I thought it would go away so I didn't say anything . But he keep going and I started to cry telling my boyfriend it hurt . So he just stopped and kissed me telling me it's ok . We keep having sex this time I'm on top bouncing on his dick and I started to get that pain again. Idk if it was hurting because it was so deep or what . But the pain was like someone pushing really hard on my bladder.