Is this spotting normal for early pregnancy?

Hi all. Last cycle I had a chemical pregnancy and the same day I got my BFP at 13DPO, I started having light brown/watery discharge or spotting. My tests got darker over the next few days but I ended up bleeding 4 days later, one day past my predicted period date. I’ve gotten vvvvvfl the past 2 days and today at 12DPO I got a more reliable faint positive result but I also started this light brown spotting again - period is due sometime between 02/19 and 02/21. Has anyone else experienced this in early pregnancy or should I be expecting another chemical? I typically do not spot before periods and I have zero cramping so far.