Sharp Pain After Sex

Hi mommies to be! I'm sorry for the "TMI" - I am 29 weeks pregnant not very sexually active, my libido is just not  here all the time 😩 but yesterday I decided to go for it, and today I woke up with a sharp pain in my perineal area, rectum and gluteus, I'm constipated and can barely pass gas or push for bowel movement (I only had vaginal sex) wanted to know if any of you experienced this before 🤔