Getting off birth control and TTC

Ashley
Hi ladies! So we decided the timing is officially right and I'm going to quit birth control. I have been on Tri-Nessa for 8 years (yikes) and I'm ready to start trying. Or at least get off the pill. So my concern is, I forgot to take my pill last Wednesday night and took it Thursday morning to double up and had unprotected sex Thursday night. Forgot my pill Saturday and just never ended up taking it (prob because my mindset is just that I'm sick of the pill) had unprotected sex Saturday night and Sunday morning (all times with my husband cumming inside of me, sorry for the TMI) I start my "period pills" Sunday and my period usually starts Monday. It's now Wednesday and it hasn't started. I have reallyyyy light spotting that's kind of dark brown. I feel like it's way too early and nearly impossible for me to be pregnant.... Thoughts? Thanks!