your pattern is changing in response to your progesterone level
Mrs. A (no login) Posted May 2, 2011 11:33 AM
In the stimming phase your are in the follicular phase and your P4 is supposed to be nice and low. As ovulation approaches your P4 levels start creeping up and lining starts to convert. After you ovulate your P4 shoots up and you want your lining to have responsed to that high P4 level by converting so that you can optimize environment for implantation.