Too fat for emergency contraceptive?

Ka

I take the pill regularly and the other day I had unprotected sex with my boyfriend, even though I do take the pills and I wasn’t supposed to be ovulating I was still worried so I got the plan B pill (emergency contraceptive) I had another <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> at the time and it told me that I weighed to much for emergency contraceptive to work, My weight jumps around from 170 to 185 pounds but the tracker told me if a woman is over 165 pounds the emergency contraceptive will not work I found that weird since the average American woman weighs 177 pounds (https://www.medicalnewstoday.com/articles/321003.php), I am not worried about being pregnant I just want to know for the future if it is true, am I too fat for it to work?

P.S. I got offended by the other tracker calling me fat so I am using <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> now lol