Clear cm- possible pregnancy?

This is my first full cycle since giving birth 13 months ago, so I know my cycle is probably off from what the app says, but supposedly, AF is due October 30th. Anyway, the last three days, I've been having tons of clear mucous off and on. It's more sticky than watery. Normally, I would think ovulation, but it's been one day of it, then a day of whitish color, then another day of clear which doesn't sound like "normal" ovulation. I didn't know I was pregnant with my first, so I don't remember what CM was like.