Is it normal to have cramping?

Victoria • Me and my husband have been together for ten years. We got married on 5/22/15. We have been trying for 8 years, still no luck.
Is it normal to have cramping while having sex on your ovulation day? Me and my husband had sex a few hours ago and I had some pains and cramping while we were having sex? And now it has been a few hours later and I have random cramping, the pain is not horrible and it doesn't feel like period cramps. I am just wondering what could cause this and if it is normal for some one who is TTC?