Should I let him cum in me?!

Melissa • Love life and it will love you back ❤️❤️❤️ #TryingToBeAnOptimist #truth
I'm going to make this short
My bf have some probs w his sperm swimming in me so I can't get pregnant until he fixes that.
Every time we have sex he comes in me- I'm just curious. Should I or should I not have him cum in me?! Explain why