is this normal?

Kimmie
My husband and I just started ttc again. We had been trying for a long time and it just got stressful when we werent having any luck so we took a break and decided to try and get into a healthy lifestyle, thinking maybe if we got it under control, when we started trying again it would be easier. He quit smoking, weve started eating organic and cut junk food and sodas, go to the gym 4-5 times a week, I started doing yoga, ive lost 20 lbs and feel great. So we decided to start trying again in january. No luck that cycle but I think our timing was off. Im about 5 days before my predicted ovulation so ive been taking prenatals and weve been bangin like rabbits. We decided to have sex as much as possible this cycle, be a bit more aggressive on the baby making front.  Only for some reason every time he ejaculates inside me I start gettimg cramps in my stomach the next day. This is new. It started A few days ago. Is this normal?