TMI! 7/8dpo, is this a positive sign?

So I have this cm, Im either 7/8dpo although I thibk more like 7dpo...
Anyways, I've never really taken note to my cm before af, but I have THIS cm now...
Other symptoms include:
- Lower abdominal cramping throughout day (nothing hectic)
- Very very tired and sleepy even after a good night's rest
- Waves of nausea (no, I'm not imagining it, I do get waves of nausea ESPECIALLY after I've eaten something).
What do y'all think?