broken condom, not on the pill

Hey y'all-- so I just had sex w my boyfriend about an hour ago and once we were done we realized the condom had broken! I peed immediately after and he went out and got me Plan B.  Needless to say, we acted very fast.  
However I'm very anxious because I don't get my period every month (usually every 2-3) and I also don't use any other kind of birth control so this waiting period is going to be very emotionally painful.  Can I just get some reassurance from my ladies out there?? 
((I'm only 18 and this is the first time I've ever had a condom break)) 

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