Could it be IB?

Currently day 29 and today (late afternoon)when I wiped, I had very VERY light pink spots. I’ve used the restroom since then and nothing 🤷🏻‍♀️. NOW here’s the thing, I had a similar situation on day 21 the day before OV. Which I thought was ovulation bleeding/spotting? It was the same only once that day and it very faint pink spots . What do we do think this is?