By sharing this link, I acknowledge that I have read and understand the Terms and Conditions.
16.2 MB (1.9 MB compressed)
2016 x 2813 pixels
17.0 x 23.9 cm ⏐ 6.7 x 9.4 in (300dpi)
SATURN STILLS / SCIENCE PHOTO LIBRARY SATURN STILLS / SCIENCE PHOTO LIBRARY
Taking oral contraceptive. Woman about to swallow a combined oral contraceptive pill. The combined pill contains synthetic versions of the female sex hormones oestrogen and progesterone. Both of these hormones suppress ovulation. Progesterone also increases the thickness of the mucus in the neck (cervix) of the uterus, which decreases the chances of fertilisation, should ovulation occur. It also alters the lining of the uterus, reducing the likelihood of the implantation of a fertilised egg.
Model release available. Property release not required.