I toke plan b today after i got sperm inside me mutiple times and i forced myself to throw up a little after i toke it. can i still get prgnant?

Yes : If you vomited shortly after taking your Plan B pill, it is very likely that it did not got in your system to be effective. If your goal is to not get pregnant, then you should retake it. If you take Plan B one-step within 24 hours, it is about 95% effective. If you take it within 72 hours Plan B one-step can reduce the risk of pregnancy by up to 89%. After 5 days, likely to be ineffective.