"i started this birth control my freshman year. i gained 10 lbs after starting this birth control, which i didn&#039;t mind because i was underweight, so it was good for me to gain the weight. i had no real problems with necon, except every month, a week before my period, i got super emotional and had a lot of mood swings and got lower back cramps. after four years of taking necon, i was starting to get extremely nauseous the last two weeks of the pack every month, so i just recently switched to a new birth control to try to get rid of the nausea. overall, i really liked this birth control, it was easy to take and didn&#039;t have terrible side effect."