Been spotting for 4 days now...

I’m currently 5w5d pregnant with my third pregnancy. I lost my first at 8w2d and the second at 5w exactly. I’ve never even come close to the second trimester. I’ve been freaked out about this pregnancy since my BFP, but now even more so. I’ve been very very lightly spotting (no cramps) since Wednesday. Rusty pink or brown, mostly when I wipe, and a couple spots on a pantyliner ever couple of hours. My hCG levels are normal and doubling as they should, which wasn’t the case with either of the first two.

I’m on progesterone which I’ve heard can cause spotting, but this is how both of the others started. A few days of (much more pink and even red spotting with those two, admittedly) and then a full on bleed. My first was almost two weeks of spotting before the bleeding started.

Has anyone had this after previous losses and gone on to have their rainbows? Or is this one a third loss in the making? Pics for reference. This isn’t every time I wipe, and most of the time it’s much more brown. I’ve had slightly worse pantyliners also, also brown.