Ugh am I testing too soon???

My period is kind of regular but also regular if that makes sense. I have usually 28 day cycles with random longer cycles but I also have very obvious ovulation pain. The purple are days I had my ovulation spotting and green was when I had the worst ovulation pain. I usually ovulate cycle day 15-16. Thanks!

The red is when I would expect my period is most likely to be due. I tested today (morning and night after a 2-3 hr hold) on frer and it was negative. Is it still too early or am I not pregnant?