Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Results 1 - 4 of 4 for progesterone
  1. ... uses copper as the active contraceptive, others use progesterone in a plastic device. IUDs are very effective ... less than 2% chance per year for the progesterone IUD, less than 1% chance per year for ...
  2. ... the production of the female hormones estrogen and progesterone.
  3. ... the release of sex hormones (testosterone, estrogen, and progesterone). In children, these hormones govern the onset of ...
  4. The progesterone in birth control pills creates a thick cervical mucus, making it difficult for sperm to reach the ...