Has plan b worked for anyone over the "BMI" limit?

So I'm freaking out again just when I thought I had calmed myself down. I had sex with a condom (but we didn't check for holes or anything afterwards) and he didn't ejaculate in (pulled out). But just to be safe since we didn't check the condom, I took plan b. I'm really only worried about precum obviously. And I am well over the "weight limit" for plan b. Has this worked for anyone in the same position? Should I even be worried?