One you will use!
There are many contraceptives available.
Used appropriately & as indicated & directed, one should feel safe from pregnancy
. For a teen
is a no-brainer. One insertion and good to go for a couple of years. No remembering! in right situation, IUD may be considered. Again no remembering. Monthly nuva ring, same idea. Daily pill--you gotta remember! can fail due to absorption & meds.