Chadwick sign very early pregnancy

This may be a weird question but...my husband and I are trying for our second and when I was really early pregnancy with my daughter I had a smurfy blue vagina, cervix everything in there. We looked it up back then and it's a symptom of pregnancy due to the increased blood flow. Now that I'm in my 2 week wait I'm 5DPO and was getting the sharp pains in my vaginal area again. I had my husband look and he said its blueish again just like before when I had my daughter. He sees my vagina a lot obviously so he knows when I wasn't pregnant for 18 months in between my daughter and now I wasn't blue. Any of you have this weird pregnancy symptom?