Am I pregnant?!?

Maddison
Okay so I've been on the pill for about 5 months now. And I've been on and off taking it for about 3 years (I originally started taking them to help my skin) but now I've got a boyfriend I thought it's pretty important to take some extra precautions to avoid becoming pregnant.
In the beginning I definatley screwed up a lot  and would forget to take them or take them late but I've got into a pattern now (for like the last 3 months) and it's second nature to take the pill unless for some reason it's been left behind at home but even then I don't actually forgot to take it for any longer then like 12hrs (So it's stil taken).
But anyway this period I've just had has been so crazily light that I probably could have used one panty liner for the entire duration.
It lasted for hardly 2 days.
But yet before I even started my sugar pills I was getting spotting so I was under the impression it would be quite heavy.
I do have un-protected sex with my boyfriend but as I said I haven't missed a pill for months!
Am I freaking out for no reason?
Should I grab a pregnancy test just incase?
Help meeeeeeee!