Spotting overload

Mindy
I've been TTC for about 8 months now and have had irregular cycles to begin with.
​Well, this has NEVER happened before...I have been spotting for almost 2 1/2 weeks straight. It's not enough that I have to wear a liner for, but can obviously see it when I wipe. 
​It will range from brown, deal brown, pink, and bright red. Can someone help me with this before I freak out and call by Gyno. ? thanks in advance!