Newly TTC - 4 days late, BFN

We just started TTC September 14th which was the first day of my ovulation cycle (been on birth control for 10 years, just stopped on Sept 13th).

I was due for AF on Sept 28th and now I'm 4 days late. I tested yesterday (first thing upon awakening) and I got a BFN.

It was a bummer but I know it's really soon however should I retest, keep trying or see doctor?! Also, because I haven't gotten AF but my period is due per Glow calendar, do I delete it or move days?