Hello I appreciate your query. It is not advisable to take any medicines, specially hormonal preparations like Registrone, without medical supervision and prescription. There is a simple and easy way to know whether you are pregnant or not. Kindly perform a home ( urine - HCG ) pregnancy test. Kindly purchase a home pregnancy test Kit commonly available at medical stores. Please select a proper brand and confirm the expiry date of the kit. Also, it is better to purchase a Urine Culture vial ( small container for collecting urine ) also readily available at medical stores. Please collect your first morning sample of urine, that is the first voided urine sample in the early morning , in the container. Open your pregnancy test kit, it contains a dropper which you can fill with two - three drops of urine from the container. Put the drops into the well shown on the pregnancy kit strip and wait for 3 - 5 minutes. One positive line means that you are not pregnant. Two positive lines ( pink lines ) indicate a pregnancy. No lines indicate that the kit is defective. Please read the instructions on the pregnancy kit once more before proceeding. If your test is negative, but you fail to have your normal periods, consult a gynecologist. Also consult a doctor, if the pregnancy test is positive, for further treatment. If you are repeatedly suffering from delayed cycles, without pregnancy , please get yourself evaluated for other disorders like polycystic ovarian disease, thyroid disorders, endometrial problems etc.