Spotting during TWW while taking progesterone???

I’ve been taking progesterone(100mg) orally at night since 3dpo to help support implantation/progesterone levels

Normally I have spotting the week before my period which my doctor thinks is due to low progesterone which is why I’m taking it post ovulation. I haven’t done the blood test to confirm low progesterone but my doctor thinks that’s the case due to spotting before period which is usually daily spotting every day for 7-9days before my period. I’ve also had 4 chemicals which I know were likely chromosome issues but we’re just trying the progesterone post ovulation to see if it helps at all.

I’ve taken it before post ovulation and never had any spotting. I was so relieved because for the first time ever I didn’t have spotting during the TWW while on progesterone. I had to stop taking it when I wasn’t pregnant at 14dpo so my period could come but had no spotting or anything until my period did come.

But this time I just had veryyyyy light brownish spotting today when I wiped after going pee. I’m 10dpo… would this likely mean my period is trying to come?