What does this mean

marie

Okay so I’ve been on birth control now for a month now I just started it I’m also 16 by the way . But since I’ve been in it I’ve been having these pelvic pains and cramps on and off sometimes at night or during the day like . But I’ve been looking on google and it’s says i have ovian cancer like wtf😭I’m scared cause for the past couple weeks I’ve been having cramps but no period but I finallly got my period today but it came late like 3 days late what does this mean ?