very light yellow discharge

i think I ovulated about two days ago. I’ve been having light yellow discharge in my underwear but might also be bladder leaks because I’ve had sudden urges to urinate. I got my period this month too but it was a little irregular. I’m only 15 and I’ve only dry humped with clothes (and no ejaculation) about a month ago. There’s no way I’m pregnant right?! help I’m worried. Also have had on and off constipation.