Possible Miscarriage/Chemical Pregnancy?

Ness • Cycle 2 of TTC #2
Hi Everyone! Hubby and I aren't ttc but not preventing anything either , normally I'm very regular with an average 24 day cycle. I had very light brown colored blood 9 days before my expected period start date. At first I thought it might be implantation bleeding, but it has continued on for 3 days now but it's not nearly as heavy as my normal periods and I haven't had severe cramping like I typically due with my cycles. Is this an early miscarriage/chemical pregnancy?