I am 17 years old and I had sex on December 12th and the condom broke. I am not on BC. I took Plan B about 30 mins after. The last day of my last period was November 23rd. I had spotting from December 19-22. My period is usually irregular, and I have taken Plan B before and am aware of how it can delay one's period. It is now January 22 and I have not gotten my period. I'm a little paranoid but I don't know if I should be, given how effective the morning after pill is. Help!