Plan b

Hey . So I had sex with my boyfriend and the condom broke and so I went and got plan b but I didn’t take it because we had more sex after that so I took it at the end of the day after we had like stopped having sex( so in simpler terms I took it the same day that the condoms broke ) this happened on Monday and today is Thursday I have been having the cramping but I think that could also be related to the fact that my period is supposed to be coming in 9 days . Should I be having anymore symptoms?