Plan B- does it work for women who are 200 pounds or little.bigger?

I know a few women 200 lbs who’ve taken it because of the exact circumstances. One even mentioned it to her gynecologist & was never even offered the prescription med. plan B did work, or maybe she wasn’t at a fertile time. My daughter took it a few times before she found a birth control pill that didn’t make her depression worse & it worked. 190lbs. I know plan B isn’t as effective and I’m upset her doctor never told her. But it’s also possible she wasn’t about to ovulate- very very irregular periods. 30-70 days when she’s not on the pill.

If you're over 150lbs it is recommended to use the other emergency pill, called Ella (Ulipristal Acetate).
However, if you've already used Plan B, then it's not recommended to then take Ella. Not enough research has been done to know that the two pills won't cancel each other out, leaving you with no chance of preventing pregnancy.

If you're still within 5 days/120 hours of sex, you could have a Paragard IUD fitted by a doctor, which may stop the pregnancy implanting, if Plan B fails. The IUD could also remain in place for future contraception.