Would love some advice

So basically my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> said that my ovulation day was yesterday. I had egg white mucus on 14th Feb and had intercourse regularly over the days before and days after.

Just gone to go in the bath this evening to notice this in my knickers 🤔 would love some advice please as my period isn't due until the end of the month/beginning of March.