Thick white “bits” in CM - 4dpo

Has anyone ever had thickish white bits in CM? It does not have a strange smell, no itching or burning, so I don’t think it’s a yeast infection. I have had yeast infection before and this is not the same. I have had good eggwhite CM through fertile window, yesterday it was creamy and stretchy. Today it’s watery with these whitish bits.