Plan b baby

So I went to visit my boyfriend and we had unprotected sex multiple times during my fertile window. On the 7th I got nervous and took plan b 🙄. I really want a baby and I really regret taking the pill, I read that if you're in your fertile window it doesn't work as well. I'm supposed to get my period this Saturday and I'm experiencing bloating, nausea, backaches, light on and off cramping and sensitive breasts. Thoughts ?