His and Her Health

Hi there,
I have stopped birth control pills as of 2 weeks ago and started with the cream. Is it normal to have daily headaches after stopping the pill and what would the cause be? The last time I stopped same thing and was the reason I went back on after 3 months. Perhaps the Dr. or others have suggestions and explanations for the reason. At 40, I am also wondering if tubal ligation will affect hormones at all. My goal is to cure the vulvodynia first, but also need reliable birth control and no headaches.
I have heard progesterone cream can assist but not sure if over the counter is helpful.
Thank you!