I have the mirena coil, iv had it for 12 weeks now! No problems here. Was painless getting put in. Iv had bo problems at all. My Oh can't feel it. I bled a little for a few weeks after but it was very light, and I had 2 periods but they seem to have stopped now. So far so good I'm really happy with it. The doctor advised me that it was a good choice of contraception if you are between children, as it affects your fertility the least xxx