"i have had mine since january 23, 2009. i was on my period, light cramp during insertion. afterward, minor cramps just that day. i have 2 kids and am 24 years old. it really has good effects, but have a little nausea tonight. the last period i got was january 23. i have been a little more moody. we are a military family and obviously can&#039;t have more kids right now. i would recommend this to other women."