Am I pregnant?

Brook

Has anyone ever gotten pregnant in their fertile window? We started trying around October 20th, then on the 24th I was supposed to have my period but I don’t think it was a period because I usually bleed for 6 days no questions asked. The first day is the only day I really seen blood but it wasn’t a lot. Then the rest was spotting and it was over in only 3 days. We’ve done baby dancing everyday or every other day and still are. I’ve been really exhausted the past week, tons of headaches (I never get headaches), very sick to my stomach in the lower part, and I feel off. I’ve taken pregnancy test and yesterday morning around 5 am I got a super faint line on 2, but I took another one hat was first response and it was negative. I’m not supposed to ovulate till the 7th, could I already be pregnant? Please help!!!