Pelvic size may also play role in further chance of Caesarean delivery, study finds

Key is to control symptoms, avoid attacks

It may not be a good idea if you have certain risk factors

Restricted eaters gained too much or too little, study finds

Make decisions before baby is due

Risk is small, and women shouldn't shun the drugs entirely, experts say

Low-cost therapy reduces threat of transfer from mother's bones to fetus or nursing infant

Help prevent nausea

Help prevent it

Supplement use may be behind doubling of respiratory disease in last 25 years, study suggests

U.S. health officials will mull new findings at vaccine meeting

What's needed in your diet, and what you should avoid

Finding may help shed light on postpartum depression in those choosing Caesareans

Study found quick screen was as good as conventional testing

Children born at or before 25 weeks were 4 times more likely to have problems at age 6, study found

Mouse study shows genetic link to signals telling body when it's full, safe to mate

Even a few glasses of wine enough to disrupt normal development, mouse study finds

Fetal exposure to cigarette smoke appears to lower breathing recovery, study finds

Simple tests and antibiotics can thwart Group B strep, doctors say

Compound given to women at risk of preterm birth cuts risk in half, study finds

Women with highest degree of contagion most likely to deliver earlier, sicker infants, study finds

Guidelines for use

Pregnant women and young children should be especially cautious

Rate can be 5 times higher than for women without pregnancy complication, study finds

Abuse postponed reproductive onset in teen, adult females, but not in men, study finds

Suggestions for more comfortable rest

But the number receiving reproductive health care services remains flat, survey finds

It's important for you and baby

Take good care of yourself during pregnancy

Signs that it may not be the real thing

They feel isolated and stressed, as well as physically and emotionally drained, report finds

Don't wait for an emergency

Single babies conceived this way have poorer outcomes, but procedure not at fault, study says

Mouse study implicates GABA receptors in the central nervous system

Women 3 to 4 times more likely to deliver baby with at least one problem, U.S. study finds

Researchers find autoantibodies that block potentially fatal pregnancy complication

Correcting varicose veins in scrotum boosts sperm count, motility, study finds

Doctors beginning task of implementing government-recommended guidelines

Reseachers to gather 10,000 samples in study of this pregnancy complication

Doctor-approved activity can help you feel better

Preeclampsia raises blood pressure, but the nutrient lowers the odds, study finds

Daily consumption while expecting ups odds of asthmatic offspring, study suggests

Most often, when a woman is 2 weeks overdue

Evaluation may help select women who are at lower risk for complications, study suggests

Both conditions cause significant decrease in body's ability to repair sperm DNA, studies find

Research shows future production of new lines may be done without destroying embryo

Older age of American moms may be behind increase in cases, experts say

Being over 35 meant lower pregnancy rates, higher chances of miscarriage for couple, study finds

But certain subset did show raised risk for psychiatric disorders, study finds

After a miscarriage

Low concentrations may lead to enamel defects, early tooth decay, study finds

Four factors were 70% accurate in determining if end result was pregnancy

Ways to tame mood swings

Hormonal effects may be to blame, researchers say

Rats fed junk food had higher cholesterol, blood fats into adulthood, British study finds

Insulin resistance increases and arteries malfunction years later, researchers say

From birth complications to heart disease, top-rated centers a better choice, health study concludes

What they're all about

Here's what may happen

Some safety parameters

Some experts say the procedure should be reserved for high-grade abnormalities

Findings apply to women inactive before pregnancy or previous history of condition

Women with multiple children need to be especially vigilant about oral health, findings suggest

CDC study found link was most pronounced for low-birth-weight girls

Practice didn't affect number of infections, need for hospitalization, study finds

They're more likely to have diminished ovarian reserve producing viable eggs, study suggests

Nurses, midwives urge more reviews, but say practice provides comfort and nutrition

Researchers suggest some of these procedures may just be matter of convenience

The changes would also advise nursing women of any potential risks

Adjust your diet long before conception

Higher levels of allergy marker found in cord blood of stressed mothers' babies

Rex and Tabby need to know the new rules

You can make your trip safe with a little preparation

Childbearing had no such benefit if baby was bottle-fed, researchers noted

Finding may lead to improved pregnancy rates for in vitro patients, fewer multiple pregnancies

Preeclampsia is common and serious, but genetics could bring screening test or treatment

Even non-diabetic levels may cause problems, study finds

If newborn breathes in first bowel movement, serious complications can follow, experts note

That could mean the wrong advice getting passed on to new moms, experts say

Doctor who helped develop product said it could aid couples trying to conceive

Tips for pregnant women who are working

It begins during pregnancy

Studies urge oxytocin use after delivery, re-evaluation of accepted birthing practices

Preferred activities, and those to avoid

More women are overweight as they conceive, raising complication risks, study finds

Potential causes of early labor

Finding another warning to pregnant women that drug use can affect fetal brain development

Don't eat for 2, because complications increase with excess weight

But more recent federal statistics saw uptick in teen pregnancies in 2006

How much do you need?

How much is healthy

Help keep it under control

Even fetus shows lower heart rate when moms-to-be work out regularly

Mom's use of tobacco, alcohol, drugs may affect kids into early adolescence, study shows

Too little -- or too much -- time between births can be risky, research suggests

Study points to anesthetic gases, radiation and pesticides as probable causes

Finding could lead to advances in organ transplantation and stem cell research

Study finds the extra health-care costs strain the system

Huge gap exists between best and worst states, with Vermont on top and Louisiana at bottom

Those in car crashes where baby is injured or dies are unbelted 62% of the time

Many mothers return to old habits if father continues smoking, drinking, study says

Finding may explain reasons for higher risk of heart disease in these mothers

Finding won't change practice, but could help illuminate labor process, experts say

Deficiency could cause even more serious troubles later on, study suggests

Survival, reproduction rates are decreased in those born early, study finds

Study also suggests it won't boost sexual activity among youth

Enjoy its benefits, but take precautions

Prospective dads might want to up their intake of the nutrient, study suggests

How it can help

Their children had lowest chances for unpredictable behavior, dealt better with stress

Finding may help scientists recreate this microenvironment for disease treatments

49% carried second baby within 2 years of the first, study finds

Maintain a healthy body image, positive outlook

Moms-to-be should monitor movement

Suggestions to stay comfortable

Preliminary research showed it greatly boosted pregnancy chances

Risky behaviors may damage sperm, experts say

Soaring body temperature isn't good for you or baby

Be careful of the products you use

Study links a brain area to later learning deficits

The problem is particularly widespread among Medicaid families, study finds

Group sets guidelines on monitoring for fetal growth restriction, preterm birth

Researchers note most hospitals already stocked with simple, inexpensive solution

Women took the B vitamin for one year before conception, study reports

Foods to avoid

Findings show that, like humans, they reached sexual maturity early to improve odds of survival

Drinking more than 200 milligrams daily doubles risk, study finds

New report does find medical abortions on the increase

Take care of your body

How to calculate your cycle

A single miscarriage boosted the odds by 67%, study found

Classes impact boys more than girls, national survey finds

Rat studies suggest the senses learn to like drinking early on

Chimps, other primates don't seem to have a marked cut-off for fertility, researchers say

Female spine has evolved to better accommodate pregnancy, study says

Birth rates among unmarried women, C-section deliveries also hit new high last year

Shared fetal environment may be to blame, researchers say

There's new evidence that the reproductive tract favors one mate over another

A list of possible causes

Blood testing cuts down on seizures linked to lamotrigine use, research shows

It's potentially another helpful role for p53, scientists say

But a cause for the connection is still being sought

Contaminated water could boost child's cancer risk, study finds

Help ensure that your results are accurate

Vitamin A-derived retinoic acid helps guide development, scientists say

It gives clues to neurological progress in toddler years, study finds

They're at greater-than-average risk of complications

Late preterm infants 6 times more likely to die during first week of life, study finds

And women's risk gets even smaller 10 years after stopping the drug, researchers say

It cut their risk for neurodevelopmental trouble, researchers say

Canadian study shows reduction after folate added to foods

More cases of a heart anomaly in babies born to infected women, study found

Most women need help and support to do it well, experts say

Women need to be aware of their heart disease risk before and after pregnancy

The condition can pose dangers to mother, baby, experts note

Protective membranes ruptured in week 20 of pregnancy, German team reports

Tips for pregnancy-related nausea

Rates were similar whether procedures were legal, illegal, survey also found

Thyroid woes have been linked to poorer outcomes, but ob/gyn experts say routine screen unnecessary