Implantation Spotting?

Danielle • Dog Mom x3 🐕 . Married 💍 3.10.18. One angel baby (MMC @ 8w) 👼🏻. One IVF rainbow baby 🌈👶🏻.

Who’s had it, how long did it last, and what was it like? I started spotting light Thursday (9/3) evening. When it first started it was very light pink. Since then, it has been mostly dried, dark brown. A couple times it has been heavier for a minute or two and more of a purplish, then turns back to dried brownish. I did get a BPF Friday morning (9/4) and have tested each morning since and it’s still positive. I am on progesterone injections and this pregnancy is a result of <a href="https://glowing.com/glow-fertility-program">IVF</a>. I’m terrified it could be ectopic, and of course, I’m reading the worst. I was pregnant once before (MMC at 8 weeks), and did not have any spotting at all during that pregnancy.