At this stage of your Pg (same as me ) I would suspect what he is feeling is maybe your cervix. The baby's head would be lower down & putting pressure on everything down there. Also your vagina increases in size during pg. I was told by my midwife that it becomes like an accordian in there, all folded up on itself KWIM? that way when the baby passes through its not stretching it out of wack.

I dunno how you could even have been in the mood to DTD!