I had the Paragaurd put in about 6 yrs ago, after I had my son. Birth control pills give me the worst headaches,and we knew we didn't want anymore kids. My hubby was feeling too young to get snipped at the time. Its good for 10 yrs, and after that its hubby's turn }( I love it!! No worries, very little problems. I did have heavier periods for maybe 3 or 4 months, and I never used to have cramps - I miss those days - but now I get them in my back on 2 heaviest days. But nothing like birth control you don't need to remember.
DR said on occasion they can be tough to get out, and have to do it surgically, but it's very rare. I some cramps on the day he put it in, but it didn't really hurt or anything. Also said as with all BC nothing is 100% and there is a larger likely hood that if I do accidentally get pregnant, the chances are high it would be a tubal pregnancy, which is just bad news all around, but the chances of that are highly unlikely.From my understanding, they will only do it on women who have had kids and are in a monogamous relationship, as it doesn't protect from STD's and its easier to put in and remove on women who have had kids.
They also make IUD's with hormone's in them that are good for like 5 yrs, but I didn't go that route due to the headache issue. Hubby said at the beginning he could feel himself rubbing against the string - its kinda like fishing line, but now he doesn't notice it anymore. I love it, and would do it again in a heartbeat!!
HTH,
Nan