* NuvaRing and Ortho Erva
* Synthetic estrogen and progestin embedded in a vaginal ring or transdermal patch
* How they work
* Release hormones embedded in them through the vaginal lining or skin into the bloodstream
* How to use
* Patch: chooses a specific day of week after period and identifies that day as patch change day. Replaces old patch with new patch on that same day each week for 3 weeks. Patch can go on butt, abs, upper outer arm, or upper torso
* Ring: inserted into vagina between day 1 and 5 of period, and worn inside vagina for 3 weeks, removed for 1 week, and replaced.