Help! Faint line?

Morgan

So, I started letrozole days 5-9. Im cycle day 19 now so I was tracking ovulation. I decided to take a pregnancy test because I wanted to make sure I wasn't already pregnant since I have to take progesterone asap. If this is a true positive I have no idea when or how I could have conceived that fast considering I was expecting to ovulate today. Unless it happened earlier and I didn't know ? I dont know.