I am really needing some advice or guidance on a topic that really just makes me upset.

Tonight and most of the time when it comes to sex I ask my husband please don’t cum in me it messes with my PH. And once again he just laughs and says he can’t help it. Well he did it again and laughed it off. I feel so disrespected that since this always happens I just feel like it’s just sex. I feel used. No matter how many times I have told him how that makes me feel he brushes it off and doesn’t even apologize. This is not the first time he has disrespected my boundaries and done things to me I did not want or consent too. We have children and have been together 7 years but I honestly don’t even know him and the things he does makes me question what goes on in his head.