You may also have a uti. I'm 26 weeks and just getting over my second one.... And I never get them! Call your doc.and ask them to do a urine test. A uti can cause you to feel crampy.
Ok thanks :) im also starting to feel like i did when i
Was having problems going to the bathroom so that may be it also :/
Cramps are normal after sex, especially if he ejaculates inside you which will cause your uterus to contract which sometimes feels like mild cramps. They should go away and not last very long but if they do just inform your dr to be on the safe side.