If you have been having regular 28-30 day cycles prior to this, and if you have been sexually active without any protection, the ideal thing would be to go for exclusion of pregnancy
before consuming this drug, since if you happen to be pregnant, this is not advisable. After completion of treatment, in the usual case, you will get a withdrawal within a week, if you are not pregnant. The drug can cause the usual side effects of progesterone
, distress and rarely, thromboembolic manifestations etc. Please consult your doctor for further advice. Take care.