Does this sound like Chadwick sign? When the cervix change color when pregnant?

The inside has always been pink but I noticed it’s getting darker like it’s turning purple? I’m only 8DPO. Is this normal. I heard of the Chadwick sign where if your pregnant your Cervix turns a blueish purple . Or something like that but my lips on the inside looks like it’s turning purple when it’s always been pink I’m still cramping like crazy. Like it feels like pms cramps. But I’m due on the 4th every period I get it before I always look at my vagina I never seen it look close to purple/ blue mixed together. Is this a sign of pregnancy? I haven’t got my cervix check in a while but from the outside it looks different no longer pink. Like it always been. Has anyone had this happen? Did it lead to a BFP?

0- ewcm

1DPO-cramps, wet feeling

2DPO- cramps wet feeling ewcm

3DPO- cramps, wet feeling, ewcm

4DPO. Can't REMEMBER MY SYMPTOMS

5DPO. Can't remember my symptoms

6 can’t remember symptoms.

7DPO - period like cramps . Sleeping off and on . Emotional. Feeling like throwing up.

8DPO- (today 02/27/2020)cramps , milky or pink cm. Period like cramps. Noticed inside of vagina is turning a purple mixed in with blue color. It’s always been pink. Feeling tired wanting to sleep most of the day. Gassy . Lower back cramps. Sometimes pinching 🤏 pain in my sides mostly the left. Mood swings. Took a test a few days ago I wasn’t sure if it’s a faint or evap o use a flashlight to see the line because I had a midstream test.but I saw something. So I wasn’t sure if it was a evap or starting to become positive. I think that was 6DPO