first "real" AF after the pill

Katie • Momma of one amazing little rainbow girl.
Was supposed to get my first "real" AF on Tuesday after coming off of the pill in January. Had a "normal" pill cycle right after finishing the pack and then was predicted to have AF Feb 14 (Happy Valentine's Day, right?)
I've only been having VERY light brownish spotting, no true bright red AF. Any thoughts? 
We will be essentially starting our TTC journey this cycle, so I want to figure this out!
Oh! And I should mention it's highly UNLIKELY that I'm pregnant, as DH and I have been using condoms while we were still under Zika quarantine (we travelled to a Zika area a few months ago and have been using condone unrll it was safe to start TTC)