Faint line 10&11 dpo, lighter 12 dpo - will period start on time?

Emily

Hey 👋 pretty sure I had a chemical pregnancy, got faint positives on 10 and 11 dpo that were about the same, this morning it was much lighter and could barley see it at 12 dpo. I am supposed to start my period on Friday, just wondering if I should expect it on time or if it will probably be a few days late.