My last period was on the 7th of July, I had unprotected sex on the 19th of July. I'm due for my period on the 4th of August but started on the 2nd, the beginning was very light pink, barely anything, then couple hours later I went to check again and it was a brownish color this time. I went to sleep and woke up this morning with it quite a bit heavier and almost a brick-red color with a tint of brown, there has even been many clots. I'm so confused and I don't know if i got my period, or if it is even possible for spotting to get dark red. Please please help!