I have taken it twice before and felt a little sick to my stomach for a couple of days. I did not notice a change in my cycle or any fatigue.

You could experience a full heavy uncofortable period that lasts as long or a couple days longer than your regular period with possibly heavier bleeding and clotting/cramping….if pain becomes sharp or debilitating pkease see a doctor as this could be a symptom of a tubal pregnancy (though this is very rare)

This is at worst (my response) that a full menstural period could be triggered

It depends on the individual. If you have any serious, lingering side effects call your doctor immediately.

@deliasdancemom No, I thought it was a great response:-) Thank you, it was helpful too right along with the other answers.

Your welcome, I delt with many girls with similar questions my years working in pharmacy