Period 3 days away. Please read!

Hailee
So for the last couple days I've been crampy. 9 &10 dpo, tests were negative. I woke up this morning 11 dpo. Checked my cervix. All was good. Just super high, soft and closed. Checked a little later & my vaginal walls had swelled up and I could barely reach. I just made my way through the swollen walls & checked again, and it's high soft and closed but I can feel the slit, with watery cm. Glow claims my period is 3 days away. Any feedback?