10 days late

My period is 10 days late, it’s usually ALWAYS on time or 1/2 days late, nothing to much. My last period started on thanksgiving. I stopped taking my bc about 2 weeks before I got my period. Me and my boyfriend have been ttc since then, i took a FRER test 3 days ago and it was negative, is it still to early to test? Also, when I was on the pill i wasn’t exactly taking it correctly, like not at the right time I’m supposed to and sometimes I would miss it. And my period last month was very different than my regular ones, hardly any blood..