Hi. I Have A Hormonal Imbalance. I Went To See

Hi. I have a hormonal imbalance. I went to see a gynae, she prescribed me with dehydrogesterone 10mg tablet for 5 days, 3 times daily, to stop my peiod and restarted the cycle. Then after 5 days of dehydrogesterone comsumption, I have my period on the next day. Is that normal, or should it actually takes around 5-7days after taking dehydrogesterone? Thanks.