Period or Spotting?

Brittani • Whatever happens, happens.
I've been on birth control for a couple months now, everything has been normal as far as periods go. I was sick a while back and wasn't taking the pills correctly and now I've had bleeding every couple of weeks?? My real period was beginning of December lasted for 5 days or so.
2 weeks after lighter bleeding but lasted as long as my usual period and once again earlier this week. I'm not sure if I should log it as a period or mark it as spotting? I hate that I can't tell the difference. Something i haven't notice these past couple weeks are sore boobs and cramps. Anyone know what it could possibly be? 
Thanks 😀