I Recently Had Sex For The First Time And Im

I recently had sex for the first time and im 16 and my partner had sex for the first time she's 14 and we were unprotected and this happened 5 days ago and she is experiencing cramps which i dont know if its her period or implantation bleeding, i did pull out and i did not put any sperm in her but im scared over the pre ejaculation and also do we need someone 18 or older to be with us if she is pregnant to take an abortion pill?