Confused.. any help?

I posted my chart a few days ago and I had a few comments saying I ovulated on cycle day 28 based off my temps making me 13dpo today, I have taken several pregnancy tests and all have been negative. I had a feeling yesterday to take an ovulation test and it was positive, I took another ovulation test today and it was darker than yesterday’s test. Is it possible I could still be pregnant or is it likely I didn’t ovulate on cycle day 28 and I’m going to ovulate in the next couple of days? I have attached a photo of my bbt chart and my ovulation test from today