I took ella (ulipristal acetate) pill with 24 hours but i am overweight 1.70 snd 99kg will it work ? the pharmacist suggested it

Should be effective: Ella (ulipristal acetate) contains ulipristal, a drug which blocks the effects of hormones needed for pregnancy. It is more effective than Plan B/progesterone only emergency contraception. When taken within 24 hours, as you report, it is about 95% effective at preventing pregnancy. I could not find information suggesting it is measureably less effective in the obese patient. Consider reliable contraception methods/IUD