Please help! Faint + but had my period?

Hi. So I have been having VERY irregular cycles since having my first daughter 2 years ago. It ranges from 27 days to 55 days. My last cycle we tried for the first time, and I tracked ovulation and everything. Well, I started my "period" way earlier than what I should have according to the ovulation test I took. My period was full blown red bleeding for 5 days from March 12-16 and now for the past week I have had brown spotting. I have been really down about it mainly because it is NOT normal for me to be spotting this much and it picked up the brown a bit more the past 2 days. I was scared thinking what if it is a super early loss? Am I just messed up inside? So I took a test tonight and look at this freaking test. It's faintly positive but DEFINITELY there. Now I am like so is this a definite loss that is just still showing up in my system? Is it a false positive? Any experiences of yours or advice would be so greatly appreciated.