caught him

So last night I caught my so watching porn and jacking off in the shower. (He's got one of those life proof cases on his phone so water doesn't hurt it)  And him and I don't have sex on account of I'm 33 weeks pregnant and it just doesn't happen that often. I knew he watched porn and I never really was bothered by it but now I feel bothered by it and hurt. Why do I all of a sudden not feel good enough and hurt by the fact that he has to do that instead of come to me? I knew he did it before but why now is it a big deal? Feeling shitty and not good enough