Need your help ladies!

Desire
So..... I have been on the patch for roughly 8 months. I take it off for my period and usually get my period within 3-4 days. I took off my patch last Wednesday and was suppose to get my period on the 17th on January. On the 18th I had brown discharge (sorry tmi) but it was done by the 19th.. Not even there when I wipe. I have been cramping though.. And my breasts aren't sore.. But I'm getting twinges of pain. No test yet! Should I wait it out?! Anyone have something similar?? Help!