Lets talk about sex ???

Ariana • I'm 20 and we're currently pregnant with baby number one. EDD October 28 2015. 😊👶✨👶🎃
I thought that caption would be humorous!
My fiancé and I had sex for the first time yesterday at exactly 8 weeks postpartum. It HURT so bad for the first couple minutes but I let him continue so we could get it over with. Afterwards I peed and it burned (OUCH) but after that things felt normal down there. No pain, no burning, nothing. But I started cramping and it lasted ALL day, didn't stop till I went to sleep last night. Did any of this happen to any other ladies? Should I be concerned? I was supposed to have an OB appointment Wednesday but I just had to reschedule so I could take the baby to her appointment so you ladies are the only help I have right now. 
Thanks