Month 7 of TTC and I decided to give charting a go rather than the opk strips because those tend to confuse me. Well, my chart did not make anything more clear

According to glow I am 7dpo. I know it is way too early to test, but my work has an event today where there will be lots of drinking so if there was any possibility of knowing I wanted to test. This is what I got:

I am nervous to get excited since I had a chemical in December. But the I tested on day Of missed AF then and the line was not as dark. And since it’s super early. Do you guys think my ovulation date was wrong?