, also known as oral contraceptives (OC's) have the main goal each month of preventing your reproductive system from releasing an egg. Generally speaking, hormonal contraceptives mainly work by suppressing . If the ovary does not release an...
http://contraception.about.com/od/hormonalcontraception...
It's possible that you are really pregnant. Birth control pills are not 100% safe in preventing pregnancy
http://wiki.answers.com/Q/Is+it+usual+for+pregnancy+tes...
during the time that you make the change yes because you have to wait i think a week before changing and you can't take your old birth control. but changing birthcontrol will not give you more or less of a chance to get pregnant unless one ...
http://wiki.answers.com/Q/Does_switching_birth_control_...
I don't think that phrase is any more or less accurate. "Birth Control" has become the standard phrase so I don't think there's any need in changing it now. However, what about the word "condom"? Where did that even c...
http://www.answerbag.com/q_view/421648?ref=W_Ask&ut...
・ Birth control pills are capable of preventing pregnancy 99 percent of the time, according to the American... ・ For most women, birth control pills are around 95 percent effective. For some women it's higher, and... ・ Most women know it is...
http://www.ehow.com/facts_5793216_chance-pregnancy-birt...
You can get accurate results from a pregnancy test while you're on the pill. Pregnancy tests work by measuring a specific pregnancy-related hormone — human chorionic gonadotropin (HCG) — in your blood or urine. The active ingredients in bir...
http://health.msn.com/pregnancy/articlepage.aspx?cp-doc...
No. One should get an accurate result on oral contraceptives. The hormones in the pill do not cause a false positive or a false negative result.
http://www.fertilityplus.org/faq/hpt.html