IUD replacement Questions!

Princess

So I’ve had my Skyla in for 3 years and it’s time to get a new one tomorrow morning! My dr is going to talk to me about switching to the Mirena because it’s good for 5 years. I love my Skyla, very minimal problems and side effects, and I check my strings weekly. Did anyone else switch and have any issues? Also...were you able to have sex right afterwards or did you have to wait a couple weeks like the initial insertion?