A woman can establish a
veset kavua based on her experience on the
pill during the months leading up to the wedding. So if she has already begun bleeding at a consistent interval after her last active pill for three consecutive cycles, she would observe that day as a
veset kavua once she is married.
Please feel free to get back to us with any further questions.
BHatzlacha!
For more on the topic of vesatot and hormonal contraception, please see our article and video here.