This edition of Horizon sees Dr. Zoe Williams looking at the risks of the contraceptive pill.
In the programme, 1,000 women aged between 18 and 45 who are on the pill took part in a survey to establish their views and fears on taking the pill, and Dr. Williams tries to examine their claims. Also there is a look at if a male version of the pill can be developed.
The Contraceptive Pill: How Safe Is It? is on BBC Two at 21.00.