Sex slump because it hurts

Just had my 3rd baby in January. Every baby’s I’ve had sex after the 6w mark. My 1st it hurt so bad I wasn’t able to have sex for a full year. My second after 6w fine. After this baby. I was fine until about a month ago and now it just hurts. It hurts bad halfway through and after for atleast a day. My lower stomach and sides hurt (pretty sure it’s my uterus/ovaries. I thought maybe he was going to deep, maybe he’s too big, maybe it’s the position or style. It doesn’t matter what we change it’s the same. Any thoughts?