A documentary called “28 Days on the Pill” has been released that seeks to expose the abortifacient properties of the birth control pill. The documentary explains that many forms of birth control pills contain progesterone, which thins the endometrium, the walls of the uterus, which in turn causes it to become inhospitable to newly conceived human life, causing an abortion.
More Information:
I was one of a number of those interviewed for this excellent documentary. You can see a seven-minute clip of the documentary here. 
Here are portions of a news report on the documentary from LifeSiteNews.com that shares some of my quotes from the film:

The documentary promotes the use of Natural Family Planning, which is the use of natural periods of infertility to regulate the number of children a family will have. 

“Modern, scientific, Natural Family Planning in every study published today is more effective than the pill, and it doesn’t cause abortions,” said Dr. Walt Larimore, who was interviewed in the documentary.

Larimore told the interviewer that the pill has “unnatural, high doses of steroids, has potential side effects including a potential breast cancer side effect, and may cause an abortion that you won’t even know about until you’re in heaven.”

“On the other side, is modern scientific Natural Family Planning – some call it fertility awareness – that’s more effective than the pill, doesn’t have the side effects of the pill,” Dr. Larimore said.

NFP, he said, “it involves the man and the woman, they have to talk together, they have to pray together, they have to learn together, they have to become one together.”

“No wonder that studies have implied that people who practice NFP have higher satisfaction with marriage, they have more frequent sex, they have more satisfying sex, they have a lower divorce rate,” he said.

“It’s because the whole issue of birth spacing becomes a couples issue.”

Dr. Harnisch, another doctor interviewed in “28 Days on the Pill,” said about the pill: “I believe that any time there is a doubt with something as precious life that we should always err on the side of protecting life, rather than saying ‘prove to me that that wasn’t alive, so it’s dead, so what? How do you know it ever happened?’”

Dr. Larimore said that he used to think that birth control had no abortifacient properties, saying it was “a bunch of rubbish.” 

Dr. John  Hartman, who first informed Dr. Larimore about this aspect of the pill, persisted, asking him to prove that the pill was not an abortifacient. 

The result was a study called “Postfertilization Effects of Oral Contraceptives and Their Relationship to Informed Consent.” This study showed how birth control pills can cause abortions. 

The study caused a stir among Christian medical groups, such as the Christian Medical and Dental Association, Focus on the Family’s Physicians Research Group, and the Catholic Medical Association.

Dr. A. Moell, who was also interviewed, said that when she was taught about contraceptives in medical school, birth control pills were “just another contraceptive, meaning that they prevented conception.” She was not informed of any abortifacient properties the pill may have.

According to “28 Days on the Pill,” the abortifacient qualities of the pill have been hushed up. 

The film cites the opposition to the study written by Dr Larimore and Stanford. Dr. Stanford said that “the pro-choice physicians have no problem” with the abortifacient aspects of the pill because they are “comfortable with prescribing the pill and they don’t want to reconsider that.”

While the thinning of the endometrium is explained to physicians in textbooks and manuals, one of the authors of the documentary who went to a health-unit seeking information on the birth control pill received a fact sheet that neglected to mention the thinning of the endometrium of the uterus as an effect of the pill.

Dr. Albert Mohler, president of The Southern Baptist Theological Seminary, said that doctors shy away from telling their patients about the abortifacient aspects of the pill because “it could lead to awkward questions and lifestyle changes, and it could also put persons in the position of very deep moral reconsideration of what they’ve taken for granted since the early 1960s.”

However, he said that “it is ethically wrong to withhold that information.”

“I am always careful to say that I’m not a medical doctor or pharmacist, I’m a theologian and a pastor, and as a pastor, I would never counsel a couple to use the pill,” Dr. Mohler continued.

This documentary basically repeats what Dr. Joe Stanford found in our systematic review on the topic: Postfertilization Effects of Oral Contraceptives and Their Relationship to Informed Consent (Arch Fam Med. 2000;9:126-133). You can read the article here. 
I’ve commented on how this information changed my beliefs and practice. You can read that commentary here. 
This documentary kinda makes pro-life organizations (especially those with physician input) who have supported the pill as NOT being an abortifacient look a bit silly (at least in my opinion). 
Worse yet, how many unborn children have been lost during this so-called debate?
The only folks in the whole world who seem to be holding to the fixed false belief (psychiatrists call a fixed-false belief a delusion) that the BCP does not, at times, cause the unrecognized death of an unborn child by preventing implantation are some Christian ob-gyns and family physicians. 
The secular community has almost with a 100% consensus said what this new report says, “In the ‘wide variety’ of oral contraceptives that are available, the ‘mechanisms of action’ are the same, said the statement: ‘inhibition of ovulation, alteration in the cervical mucus, and/or modification of the endometrium, thus preventing implantation’.”  
To me, until the BCP is shown NOT to have an abortifacient effect, it’s time for Christian physicians, ethicists, and pro-life organizations to stand up and say “tie goes to the unborn baby.”
I have a reading list that includes a couple of dozen articles in which a variety of authors and organizations debate this topic. You can look at the list here. 
Here are three articles I’ve written on the topic:

• Postfertilization Effects of Oral Contraceptives and Their Relationship to Informed Consent.  
• Editorial on Postfertilization Effects of the Birth Control Pill and How This Information Changed My Beliefs And Practice. 
• The Growing Debate About the Abortifacient Effect of the Birth Control Pill and the Principle of the Double Effect. 

You can also read blogs I’ve written on the topic:

• Did you know the birth control pill can cause abortions? (Wednesday, 22 October 2008) 
• American Society of Reproductive Medicine Statement Confirms the Pill Causes Abortion (Monday, 15 December 2008) 
• Some Pharmacies Believe Birth Control Pills Cause Unrecognized Abortions (Monday, 11 August 2008) 
• Not only does the Birth Control Pill not work as well as advertised — it may cause abortions (Monday, 7 July 2008) 
• Professor Says Women Use Birth Control Pill Wrong, Resulting in Abortions (Friday, 27 June 2008) 

You can read the whole LifeSiteNews report here. 
You can learn more about the “28 Days on the Pill” documentary at its website here. 
 You can also read other stories on the topic from LifeSiteNews.com here:

• Planned Parenthood in Hysterics over Bush Memo Defining Abortifacient Contraception as Abortion  
• Target Pharmacist Fired for Refusing to Dispense Abortifacient Morning-After Pill 
• Pro-Life Groups Publish Pamphlet Exposing Dangers of Abortifacient Birth Control 
• Abortifacient Contraceptives