watery discharge? on nexplanon?

this morning i woke up to watery discharge... i did take medicine last night (so i know my birth control isn’t affective right now). last night i also had stretchy jelly like discharge. what does this mean? am i okay? am i pregnant? yes my boyfriend and i have sex but he’s only cummed in me one time. i’m very nervous this could mean i’m ovulating .... WHAT IS GOING ON?? AM I PREGNANT?

please help!!!!!