i have been on cerezette for just over a week, i cannot use any other pill due to me being over weight and the risk of high blood pressure, however, i have now been on my period for 7 days, but it is mainly extremely light spotting. i have heard people who have spotting continously on cerezette, how long should i give it to see if it settles down? and also, the spotting seems to go away, and then appears again after sex, is this normal with cerezette?