over reacting?

So 4 o clock this morning, I was woken up by my OH playing with himself in the bed next to me whilst watching porn! This is the third time this had happened. Once was when I was 8 months pregnant, once a few weeks ago and again lastnight. These are just the ones I've woken up to!! We don't have sex very often, my little boy is 4 months old, and I'm still sore! We have tried, but it just ends up being too sore for me! He works long days 5 sometimes 6 days a week, says he does it cause he can't sleep. I'm so upset by this! He said he didn't want to wake me cause I always reject him anyway! (If he did wake me at 4am for sex, his life wouldn't have been worth living!!! Lol). Am i wrong to over react about this?? I'm just so tired after looking after our baby, cleaning, cooking and trying to lose weight at the same time. He says he understands, but then this is not acceptable in my eyes!!! Any advice?! 😩