In current medical practices, two synthetic female hormones, oestrogen and progesterone are used to prevent pregnancy by inhibiting ovulation.These are also known as ‘birth control pills’. Some injectable steroid contraceptives like progesterone only contraceptive injections including DMPA or Depo-Provera and Nexplanon are also in practice. | In current medical practices, two synthetic female hormones, oestrogen and progesterone are used to prevent pregnancy by inhibiting ovulation.These are also known as ‘birth control pills’. Some injectable steroid contraceptives like progesterone only contraceptive injections including DMPA or Depo-Provera and Nexplanon are also in practice. |