Does Plan B work?

I am freaking out. And i keep reading so many posts. And i need some peace of mind. Hopefully you can help. On Saturday 8/3/19 I was with my boyfriend and the condom broke. He came but it wasn’t a full load. I took plan B about an hr after. Then about 23 hrs later I took another dose because i was reading and it seems like it it less effective on bigger women. So i thought if i double the the dose it will be more effective. I am not on Birth control. My periods are usually irregular. Will I still get pregnant?