Is Spotting during pregnancy normal?

I recently found out I was pregnant on 8/14

(last period 8/2) a digital yes and 3 with faint blue line

I’m around 4 weeks(I think) now with a bold positive blue line but I’ve been spotting every other day since I got a positive test. Mild cramping I thought could have been from implantation, it’s brown/pink and no clots. My previous pregnancies I never spotted except for in my last few weeks.

If I hadn’t taken a pregnancy test I would have assume this is just a very light period.