Random bleed at CD19

va

I had my daughter almost 7 months ago via <a href="https://glowing.com/glow-fertility-program">IVF</a>, before her, I had not had my period for like 4 years (and remain undiagnosed for the most part, lean PCOS is the closest but never official diagnosed). 3 months PP my period returned, and regularly so far, my cycles started long but get shorter every month (last month it was only CD25 when I got my period). I have a naturally high LH level so ovulation strips don’t work for me, so no idea I’d/when I would have ovulated. But I had some dark/old looking blood twice, then it got really light pink throughout the day yesterday (todays CD20). Any idea what this could be or anyone with a similar experience? TIA💕