help!!!

Im 15, in a relationship and sexually active. I have never missed my period or been more than 1-2 days late/early and ive also never been unprotected whiles having sex,
My period is now 10 days late😩im very worried and scared, that i am pregnant but a child is not something i want, concidering my lifestyle and age, if i am pregnant, could i have an abortion without my parents knowing? &how would i go about doing it😔