Cramping after sex?

Merrick • 9 teen/model/baker/figure skater/aerial silks/poet
Well I guess my title is actually pretty descriptive but I'm wondering if anyone get cramps after they've had sex? I've had sex three days in a row and my lower abdomen is cramping and I'm not sure if it's gas or something is wrong. Other parts of my vagina feel fine inside and out but I'm cramping. Any asvice or comments?