Did plan b work?

I had unprotected sex on Wednesday, in the fertile window according to this app, with fertile CM. On Friday afternoon I took a plan B pill. The following day on Saturday, I had large amounts of textbook raw egg white CM and the amount decreased over the next day but as of early morning hours of Monday I’m still having raw egg white CM.

I was reading that plan B is supposed to delay ovulation and won’t work if taken after ovulation, I also read that it thickens your CM.

With the large amounts of raw egg white CM and no signs of nonfertile CM, do you think plan B worked?

*married with children, not actively TTC