Pregnant with triplets symptoms and conditions

Just had Mirena put in two days ago (Friday). This is Sunday and tried to workout and couldn't finish. I usually do pilates on a reformer everyday. I feel tired and crampy. I never looked up Mirena on the internet before I had it inserted and feel scared to death. I don't want to bloat or constantly spot. I have a great sex life with my husband and constantly having to worry about bleeding will make my sex life a disaster. I will keep everyone up to date on what I am going through. I sure hope I don't have any problems with this. I was pregnant with triplets 6 weeks ago and lost them and decided I better get on some great birth control. My doctor thought this would be great for me to go on. Lets all hope the cramping and light bleeding stops.