Emergency Contaception Side Effects?

Ok, Me and my boyfriend are not exactly ready to have a kid, so we tried to do the responsible thing and get EC after the condom broke the other day. It broke at about 10:30 at night and he, pardon the information, precomes a lot. And when I say a lot I mean quite a bit. The comdom has slipped up and almost off a few times (by the way we ALWAYS use comdoms. We're not ignorant about this like most) and his precome isn't just clear like the bodies natural lube, it's white so theres some lil guys in there. We got the EC, which was Plan B, and I took the first pill around 3:30 the next after noon. And I took the second on time. I wouldn't think too much of side affects such as my tender , dizzy feeling, nausea at random times with no puking, feeling really tired, menstrual cramp feelings and just feeling completely off if two days before the broken condom I hadnt gone to the bathroom and had a little bit of pink blood on the toilet paper. A day before that there was the tinnnniest pinkness on the toilet paper too. I'm supposed to start my period on the 20th and am usually regular. Last two periods have arrived RIGHT on the 20th. I don't want to freak myself out but I just want to know if you still have side effects from EC three days after you take the pills, or if I could be...pregnant. Should I take a test now or wait for my period? Or wait for the symptoms to go away? I can't get pregnant out of my head.