Late period but..

Jewel • Just a small town girl livin in a lonely world *
Okay so I am on the pill but only since February (to get Aunt Flo to return, she been MIA for months) but its been on time every month til this one... I stopped taking it, making this my last pack so we can ttc... Do you think its a coincidence? And I am just too anxious? I started spotting brownish, like the after period stuff... But thats all... My period was supposed to be here this past wednesday, and just not I discharged the dark color and it wasn't alot..TMI but my Fiancé and I also are stress relievers for each other so ya know, sex is almost everyday lol For the girls who were on the pill does this normally happen? Not for nothing but Aunt Flo has been on time banging down my door these past few months (literally the worst ones I have ever had). Should I be concerned? Or do you think I am just getting ahead of myself bc I really want this?