It is completely normal not to have any bleeding or signs of a period just four days after finishing your five-day course of Regestrone (norethisterone). Typically, withdrawal bleeding begins anywhere from 3 to 10 days after taking the last tablet, though it can sometimes take up to two weeks for your body's hormone levels to drop and trigger the bleed. I recommend waiting a few more days. However, if you do not start your period within 10 to 14 days, or if there is any chance of pregnancy, it would be best to consult your healthcare provider for a quick evaluation.

Regestrone (norethisterone) is a hormone-based medicine that can temporarily affect your natural menstrual cycle, so changes in ovulation timing, mild cramps, or differences in vaginal discharge/dryness may occur after taking it. However, the effects can vary from person to person depending on individual hormonal balance, overall health, and other factors. These symptoms are not always caused by the medicine alone and may also occur due to normal cycle variations. If the dryness, cramps, or cycle changes continue, worsen, or are accompanied by unusual discharge, itching, pain, or abnormal bleeding, it is best to consult a gynaecologist for proper evaluation.

After finishing a course of Regestrone (norethisterone), it typically takes about 3 to 10 days for your withdrawal bleed to begin, so two days is still very early. Your lower belly and leg cramps are very common signs that your body is responding to the hormonal shift and preparing to start your period. Since your pregnancy tests are negative, you can feel reassured. Try to rest, stay hydrated, and give your body a few more days. If your period doesn't start within a week, or if the cramps become severe, please consult your healthcare provider.

Since you started your daily oral contraceptive pills on the fourth day of your bleeding, the medication became effective immediately to protect you. Additionally, because you have taken your pills correctly every day and your partner did not ejaculate inside you, your risk is minimal. Keep taking your daily birth control pills at the same time each day to maintain their effectiveness. If you ever feel anxious, a simple home pregnancy test in two weeks can offer extra peace of mind.

Since your pregnancy test is negative, it is generally safe to continue your Metformin, Normoz, and folic acid as prescribed for your cycle. Regestrone (norethisterone) is commonly used to safely restart your period. However, because early home pregnancy tests can sometimes show false negatives, it is highly recommended to consult your gynecologist to confirm you are not pregnant before taking Regestrone. Your doctor will safely guide you on the exact timing and dosage for these medications.

This is a very common and manageable issue. Spotting around day 15 of your cycle is often related to temporary hormonal fluctuations during ovulation. Since it persisted despite taking Regestrone (norethisterone), other possibilities include benign conditions like uterine polyps, small fibroids, or minor hormonal imbalances. I gently recommend consulting your gynecologist. They can perform a routine pelvic ultrasound or simple hormone tests to pinpoint the exact cause and tailor a safe treatment plan to help you feel comfortable and secure.