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FAQ006, May 2018

What is cesarean birth? Cesarean birth is the delivery of a baby through incisions made in the mother's abdomen and uterus.


FAQ196, May 2018

What is marijuana? Marijuana is a plant that contains a chemical called tetrahydrocannabinol (THC). THC can cause relaxation and the typical “high” associated with marijuana use. Marijuana has other chemicals that affect different organs in the body, including the brain, lungs, blood vessels, heart, and liver.


FAQ034, May 2018

What is high blood pressure? Blood pressure is the pressure of the blood against the blood vessel walls each time the heart contracts (squeezes) to pump the blood through your body (see FAQ123 Managing High Blood Pressure). High blood pressure also is called hypertension. Hypertension can lead to health problems. During pregnancy, severe or uncontrolled hypertension can cause complications for you and your fetus.


FAQ156, April 2018

How does pregnancy begin? Fertilization, the union of an egg and a sperm into a single cell, is the first step in a complex series of events that leads to pregnancy. Fertilization takes place in the fallopian tube. Over the next few days, the single cell divides into multiple cells. At the same time, the small cluster of dividing cells moves through the fallopian tube to the lining of the uterus. There it implants and starts to grow. From implantation until the end of the eighth week of pregnancy, it is called an embryo. From the ninth week of pregnancy until birth, it is called a fetus.


FAQ186, March 2018

What is progestin? Progestin is a form of progesterone, a hormone that plays a role in the menstrual cycle and pregnancy. Progestin is used in combination with another hormone called estrogen in combined hormonal birth control pills, the vaginal ring, and the skin patch. It also can be used by itself in progestin-only pills and the birth control injection. The birth control implant and the hormonal intrauterine device also are progestin-only forms of birth control and are discussed in FAQ184 Long-Acting Reversible Contraception.


FAQ185, March 2018

Contraception What are combined hormonal birth control methods? How do combined hormonal methods prevent pregnancy? How effective are combined hormonal birth control methods? What are the benefits of combined hormonal methods? What are possible risks of combined hormonal methods? Can I use combined hormonal birth control methods while I am breastfeeding? How can I get combined hormonal pills? What are the different types of combined hormonal pills and how are they taken? What are possible side effects of using the combined hormonal birth control pill? ...


FAQ112, March 2018

What things should I think about when choosing a birth control method? To choose the right birth control method for you, consider the following: How well it prevents pregnancy How easy it is to use Whether you need a prescription to get it Whether it protects against sexually transmitted infections (STIs) Whether you have any health problems


FAQ500, March 2018

Why should I think about using birth control right after I have a baby? It is possible to get pregnant very soon after having a baby if you have sex and do not use birth control. Some women can become pregnant even before their menstrual periods return. Starting a birth control method immediately after you have a baby can help you avoid an unintended pregnancy. It also lets you control if or when you want to become pregnant again.


FAQ022, March 2018

What are barrier methods of birth control? Barrier methods of birth control act as barriers to keep the man’s sperm from reaching the woman’s egg. Some barrier methods also protect against sexually transmitted infections (STIs). A few barrier methods (spermicide, condom, and sponge) can be bought in most drugstores. Others (diaphragm and cervical cap) must be prescribed by a health care professional.


FAQ027, February 2018

What is the Rh factor? The Rh factor is a protein that can be found on the surface of red blood cells. If your blood cells have this protein, you are Rh positive. If your blood cells do not have this protein, you are Rh negative.


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