Failed ivf but my af is weird

Sorry if its TMI but I wanted to know if anyone had a similar situation. Once I got a negative beta I knew I was out so I stopped meds, about 5 days later I started spotting brown but mostly when wiping. Its been 6days of that and only 1 day of brown and very light red, now its back to only when wiping. Anyone experience the same or have thoughts on what it could be?