Nope! Perfectly normal at this stage in your prenancy(:
I started experiencing this around 18weeks+
Thanks! I'm only 20+3. It isn't too early for this is it?
Could be uterine contractions. Oxytocin (the hormone that makes you orgasm) is responsible for contractions when you go into labor. Practice contractions post orgasm are totally normal although not always comfortable! Drink some water and lay down for a while to relax them away.