Ovulating after plan b

It’s been 6 days since I had unprotected sex & took plan b. (I took plan b not even 30min after sex)

I know the pill is “SUPPOSED” to delay ovulation , but if I still ovulate (I know my body VERY well & I feel like I’m close to ovulating) IF I do ovulate what are the chances of becoming pregnant ?

I’ve been having light cramps for a few days , and a ton of other period / pms type symptoms. My period isn’t due for 15 days (I know plan b messes it up also, my periods are regular)