Should i take another test now or later or don’t even bother ?

So i had a very weird period i took a test right after my period then i took a test 4 days after ovulation and should get my period oct 1st or 2nd and the app said 12 days! I’m also irregular wirh my periods and they are always so heavy this period was heavy but only two days. So i took another test i feel i see a faint line but I’m not sure. Is it even possible 12 days before my

Period to be pregnant ? And even if my last period wasn’t my period wouldn’t it show way more then this. I fee this has to be a faint fault positive. Just curious what everyone else sees. Should i take another test or wait till my period. Maybe someone else has gotten this and hasn’t been pregnant