Hi. I Have A Question About Emergency Contraception. On Wednesday

Hi. I have a question about emergency contraception. On Wednesday night, I took the Plan B pill after the condom broke while intimacy. On Saturday night, my boyfriend and I were intimate, and the condom broke again. I have the store brand version of Plan B. My question is, is it too soon to take emergency contraception a second time in a week? I'm really iffy about taking it so close to the last time I took it.