Help ttc after mc test help

Lindsey • Angel baby 7/23/2019🌞🐶👶🏻 Ectopic loss 11/5/2020 🌈💔 Twin babies lost 2/24/2021 💔 Miracle baby girl 🎀🌈 due 6/6/2022 Dog momma to 3 lab babies - Dakota, Tucker, Paisley. Goat mom. Chicken mom.

Hey guys. So I had a miscarriage in July. Ovulated last week around Thursday I believe based on opks. I had followed my line down to make sure I was testing negative. From what I can tell I’m only 4dpo but my line got darker today. Is this possible. Has this happened to anyone. I don’t want to get my hopes up. 😕🌈😫 bottom test is today