Super super faint BFP?

I decided I could wait any longer and took a First Response Early Result test (the one you can use 6 days before your missed period) at 2pm. It was my first time buying & taking a pregnancy test. I waited 3 minutes & I could see a really faint—almost invisible—second line. I held it up to a light & I could kinda see it better. I'm 10DPO, so I'm hoping it's just too early to tell. I also bought a did girl one (also from FR.). Should I wait & take it in the morning or wait a few more days?