Weird Period this month

Desiree • Married 💍 Pregnant with Baby #1!♥️

So my husband and I have only been trying to conceive for a month. So July was ur first month trying and my next period was scheduled for August 7th. Well I was hoping miss my period but it ended up coming 4 days early which is not normal for me! My period is usually always on time or maybe a day late but never early! Anyways, I got it heavy the 3rd, 4th & 5th and then all of sudden from the 6th to the 8th (today) I have not menstruated AT ALL! Just brown spotting?? My period always last 7 days, with medium flow every day until about the 6th day then it slows down! This is just absolutely crazy and I don’t think i can be pregnant because it was a full on period the first 3 days?? Has anyone ever experienced something like this?? Should I post this on the group that talks more about pregnancy??