Wet undies

Ariah • First time momma with her rainbow baby 👶🏼 🌈
Okay so I was supposed to start last Thursday on the 16th, and she hasn't shown up till yesterday. But yesterday I was spotting only when I went to the bathroom and it was a light pink with what looked like CM. I woke up this morning and my underwear were wet with only a nickel size spot of blood. Any ideas what that means?🤦🏻‍♀️