I had mirena put in about a month ago and I have had a great experience with it so far. The only thing I am curious about... is it normal to be crampy after having sex? I have had sex while on mirena for the month that i have had it nad have not had a problemI have not had any problems. This is recent and I am wondering if it is something I should be concerned about enough to make a seperate appointment from my scheduled 6-8week check-up?