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Pregnancy prevention

Women who are male sexual partners should consider birth control if they are not interested in getting pregnant.

Some prevention methods work best for some people. Talk to your doctor about the right way to control birth for you. Some of the most common contraceptive methods are discussed below.

Pregnancy Prevention
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Birth control method Effectiveness rate
Intrauterine devices (IUDs)Over 99 percent
The pill99 percent with perfect use; around 91 percent with typical use
Male condom98 percent with perfect use; around 82 percentTrusted Source with typical use
Female condom (or internal condom)95 percent effective with perfect use; around 79 percent with typical use
Morning-after pillUp to 95 percent (taken within one day of sexual contact); 75 to 89 percent (taken within three days)
Natural family planning (NFP)75 percent when used on its own

Pregnancy tests

Related Content :

Tests Associated with Pregnancy

PURPOSE TEST NAME WHY PERFORMED WHEN PERFORMED WHO PERFORMED ON/SAMPLE
Genetic tests for inherited diseases Genetic testing for inherited diseases Check carrier status for certain genetic diseases to determine risk of having a baby with such a disease Preconception or first trimester Mother and father (blood sample)
Genetic testing for hemoglobin disorders Check carrier status for certain abnormal hemoglobin disorders to determine risk of having a baby with such a disease Preconception or during pregnancy Mother and father (blood sample)
Cystic fibrosis carrier testing Check carrier status for CF Preconception or first trimester Mother and father (blood sample)
Testing to detect health conditions in the mother Blood glucose or hemoglobin A1c To screen women at risk of type 2 diabetes (which is different than gestational diabetes) Preconception or first trimester Mother (blood sample)
Pap test and HPV testing Screen for cervical cancer and some STDs Preconception or first trimester Mother (cells from her cervix)
Immunity to rubella (German measles) Check for immunity to the virus, which can cause birth defects Preconception or first trimester Mother (blood sample)
HIV screening test Check for HIV infection so steps can be taken to reduce likelihood of transmission to the baby Preconception or first trimester; may be repeated in third trimester if at high risk Mother (blood sample)
Gonorrhea, chlamydia, and syphilis tests Check for STD infections, which can cause miscarriage or infect the baby during delivery Preconception or first trimester; may be repeated in third trimester if at high risk Mother (cervical cells, urine or blood sample, depending on test)
Hepatitis B and hepatitis C screening Detect hepatitis B or hepatitis C infection Pre-conception or first trimester; may be repeated in the third trimester if at high risk Mother (blood sample)
Varicella zoster virus testing Check for immunity to chickenpox, which can cause birth defects Preconception or first trimester Mother (blood sample)
TORCH panel Check for infection with toxoplasmosis and other infections that can cause birth defects Preconception or first trimester, if infections suspected Mother (blood sample)
Bacterial vaginosis Detect infection, which can cause pre-term labor Preconception or whenever symptoms experienced Mother (vaginal secretions)
Urine culture for bacteriuria Detect bacterial infection in the urinary tract, which can lead to kidney infection or increased risk of pre-term delivery and low birth weight First prenatal visit or between 12 and 16 weeks of pregnancy; may be repeated in third trimester Mother (urine sample)
Group B streptococcus Detect infection, which can harm the baby during birth and infect the mother’s uterus, urinary tract, and any incision made during a cesarean section Between weeks 35 and 37 of pregnancy Mother (specimen from vaginal and rectal areas)
Confirmation and monitoring of pregnancy and health of mother Pregnancy test (hCG) Confirm pregnancy First trimester Mother (blood sample)
Urine screen for glucose and/or protein Check for signs of kidney or bladder infection, undiagnosed diabetes or gestational diabetes, or pre-eclampsia Each prenatal visit Mother (urine sample)
Complete blood count (CBC) Check for anemia and/or detect low platelet count Preconception and/or early in the first trimester; repeated in third trimester Mother (blood sample)
Blood typing and antibody screen Check for potential incompatibility in blood type between mother and fetus (such as Rh factor antibodies) First trimester; antibody screen repeated between weeks 28 and 29 of pregnancy Mother (blood sample)
Glucose challenge test/oral glucose tolerance test Check for gestational diabetes Between 24 and 28 weeks of pregnancy Mother (blood sample)
Thyroid stimulating hormone (TSH) In women with known thyroid conditions, to adjust medication if necessary Throughout pregnancy Mother (blood sample)
Detection of fetal abnormalities or assessment of risk First trimester Down syndrome screen Assess risk of carrying a fetus with certain chromosomal abnormalities, such as Down syndrome Usually between 11 and 14 weeks of pregnancy Mother (blood sample plus ultrasound)
Second trimester maternal serum screen Assess risk of carrying a fetus with certain chromosomal abnormalities or open neural tube defects Between 15 and 20 weeks of pregnancy Mother (blood sample)
Cell-free fetal DNA Assess risk of carrying a fetus with certain chromosomal abnormalities; currently recommended for women at high risk of having babies with these disorders During or after the 10thweek of pregnancy Mother (blood sample)
Chorionic villus sampling Detect chromosomal disorders in the fetus Between weeks 10 and 12 of pregnancy, if recommended Mother (cells from the placenta)
Amniocentesis Detect certain birth defects and chromosomal abnormalities Between 15 and 20 weeks of pregnancy, if recommended Mother (amniotic fluid)
Cordocentesis Detect chromosomal abnormalities, blood disorders, and certain infections Between weeks 18 and 22 of pregnancy, if recommended Mother/fetus (fetal blood sample obtained from vein in the umbilical cord)
Fetal maturity/readiness for birth Amniocentesis Check fetal lung development After week 32 of pregnancy if risk of pre-term delivery Mother (amniotic fluid)
Fetal fibronectin (fFN) Detect fFN; negative result is highly predictive that pre-term delivery will NOT occur in the next 7-14 days Between week 22 and 35 of pregnancy, if having symptoms of pre-term labor Mother (cervical or vaginal fluid sample)

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