Could I be pregnant?

Shana
So, I had my peak ovulation on July 17, hubby and I BD. But then when It was time for AF to show her face, she never came. I was over a week late. Then I got some spotting for a few days then nothing. But here I am with faint faint tests that are tweaked and idk what to do. Could I be really early in pregnancy and not getting solid lines yet or am I not pregnant?