Tawaf while using pills to prevent menstruation

The questioner:
May Allah answer you. This question says that its sender, or her sender, is a sister whose monthly period came at the beginning of the month of Dhul-Hijjah. She used pills to prevent menstruation for the first time, and after using them, she wanted to stop them, but her condition worsened. Her period used to last three days before that, but after taking the pills, it would stop for a day and then come back for a day. However, she performed tawaf for 'Umrah while she was in that state. Is this considered valid, and what is obligatory for her?

The Shaykh:
She should perform tawaf during the time of purity. She performs tawaf during the time of purity, and if her tawaf coincided with the time of bleeding, it is not sufficient. She performs tawaf during the time of purity, because some pills do not work; for some women, the pills do not benefit them but rather harm them.

The questioner:
May Allah reward you. Then she completes the question, saying: And up to this day, she has not performed the tawaf of ifadah, knowing that she did not say, "If one who prevents me prevents me."

The Shaykh:
During the time of purity, and she performs tawaf during the time of purity. Yes.

The questioner:
May Allah suffice you. The second question says: Where are the nights?

The Shaykh:
She takes a bath when she becomes pure. She takes a bath and performs tawaf. She performs the prayer and then performs tawaf. Yes.