Dani...
Dani,
Yes, this is a view that some people take regarding hormonal contraception. It is really a question (or argument) of defintion, which can ignite heated debates.
So, here are documented facts about how the hormones in oral, transdermal, and injectable contraceptives prevent pregnancy:
1) Inhibiting ovulation (Primary)
2) Thickening cervical mucus making it difficult for sperm to pass through the cervix
3) Producing an endometrium (lining of the uterus) that is not receptive to implantation
This information is documented in medical books (Contraceptive Technology, Clinical Gynecology Endocrinology, and Infertility, etc.), the web (
http://www.plannedparenthood.org/bc/bcfacts11.html#PILL), and can be found on the package insert of various hormonal contraceptives. For example,
http://www.ortho-mcneil.com/products/pi/pdfs/cycltri.pdf
http://www.orthomcneil.com/products/pi/pdfs/orthoevra.pdf
http://www.yasmin-us.com/Physician_PI.pdf
http://www.pfizer.com/download/ppi_depo_provera_contraceptive.pdf
The statistics regarding how often implantation is prevented related to contraceptive use will vary, but family planning experts usually report that this rarely occurs.
Let me add that I provide family planning services, so I support reproductive choices. However, I am familiar with the moral/religious implications of this issue, because I am Catholic and have faced many “firing squads”
. I see both perspectives.
Hope this helps!
Autumn