I don't want to scare you but you should tell your dr 2mrrw what is happening. They'll do blood work to make sure your hormones are doubling. I had to go in 2 times for it I spotted at 6wks and 8wks. They told me to call every time it happens. It's not completely normal but it may happen.

it's normal if it's not heavy like a period or bright red. I spotted around the time my period was do (I found out I was pregnant 4 days before) and I spotted at 7 weeks

If it's not bright red or super heavy you should be fine. I never spotted that early but i hear it's fairly normal