The menstrual cycle causes the ovary to make an egg that is released by the ovary (ovulation). The fallopian tubes make a wave like action and sweep the egg into the tube where it can meet with sperm. The egg must be fertilized within 24 hours. Sperm can live up to 5 days in the uterus waiting for an egg to be released or sperm can swim up to meet an egg within 5 minutes of ejaculation. Fertilization happens when an egg cell and a sperm cell join to make an embryo.

Birth defects happen before a baby is born. Inherited or genetic factors; things in the environment, such as smoking or drinking alcohol or not getting enough folic acid; and a woman's illness during pregnancy can cause birth defects. Most birth defects happen in the first 3 months of pregnancy, when the organs of the baby are forming. This is the most important stage of development. However, some birth defects happen later in pregnancy. See similar questions...

Any process resulting in incomplete combustion gases entering occupied spaces can cause carbon monoxide poisoning. It depends on the concentration of carbon monoxide in the gases; the volume of combustion gases; and the length of time over which this occurs. The most common sources are combustion engines (automobiles, gas-powered lawn mowers, etc.) and fumes from water heaters, gas stoves, unvented heaters, and furnaces. See similar questions...

Scientists have confirmed that the number of twin conceptions greatly outnumbers the number of actual twin births. Some estimates offer that 1 in 8 people started life as a twin, while in reality only 1 in 70 actually are a twin. In "Having Twins," author Elizabeth Noble claims that 80% of twin pregnancies result in the loss of one or both babies. Other studies predict that Vanishing Twin Syndrome occurs in 21 - 30% of all multiple pregnancies in the United States. See similar questions...

Some women have reported that their RP has progressed more rapidly during pregnancy than it ever had previously. However, because RP is rare, this issue is difficult to study in a systematic way. If you are pregnant, or thinking of becoming pregnant, you should make sure that your obstetrician/gynecologist is aware of your eye problems, and that your eye care professional knows of your pregnancy. See similar questions...

Preeclampsia is often silent, showing up unexpectedly during a routine blood pressure check and urine test. In cases like this, if the baby is near term (after 36 weeks) the baby is induced, delivered and the mother watched and sent home as usual. If preeclampsia occurs earlier in the pregnancy, especially for a mother expecting multiple births, its impact is more profound. Time off work, bed rest, medication and even hospitalization may be prescribed to keep the blood pressure under control. See similar questions...

Preeclampsia can appear at any time during the pregnancy, delivery and up to six weeks post-partum, though it most frequently occurs in the final trimester and resolves within 48 hours of delivery. Preeclampsia can develop gradually, or come on quite suddenly, even flaring up in a matter of hours, though the signs and symptoms may have been present for months undetected or unnoticed. See similar questions...

involving one or both parents Tragically, though, it most often happens at home and usually the abuser is known to the child. Generally, the abuser is a caretaker. A caretaker can be a parent, stepparent, relative or baby-sitter. See similar questions...

God continues to call us to ministry, we are always trying to discern that call. People may be discerned for parish ministries at any time. The formal discernment for team ministers will happen every three years because of the three-year the formation and training program. Commissioned Team Ministers may be discerned for a different team ministry whenever the team recognizes the need and the parish and coucil affirm the call. See similar questions...

CRC error means that data that you are extracting does not match data that was compressed. Basically, your archive is corrupted. This usually happens when downloading files from Internet, or if your CD is scratched. We recommend trying to download the archive in question again, since most of corruptions happen when data is being downloaded. See similar questions...

Neither CDI or dDAVP treatment is risky for the fetus. As far as we know, dDAVP is completely safe during pregnancy. It has not been associated with any significant increase in spontaneous abortions or fetal malformations. The only risk is water intoxication, but that is no greater than in any other DI patient and can be avoided by remembering to drink only when you are truly thirsty. See similar questions...

Menopause is the time in a women's life when her reproductive system shuts down and her reproducing days are over...or are they? For some women, pregnancy is still a concern during menopause. How is this possible? There may be more than one factor that plays a role... See similar questions...

Are you a pregnancy waiting to happen? A quick and easy True or False quiz to help you determine if you are at risk for unwanted pregnancy. quiz teens sex pregnancy birth control condoms protection high risk low risk unwanted pregnancy teen pregnancy love relationships dating advice Are you boy crazy? A quick and easy 20 question quiz to help you determine if you are boy crazy. Teen Advice Quiz Are you boy crazy? A quick and easy 20 question quiz to help you determine if you are too trusting. See similar questions...

A list of things you can do to overcome your depression and achieve satisfaction and harmony with life. More than 50 % of all people are considering suicide at some time during their life. Statistics of suicide show that there are 5000 suicides each year in the United Kingdom. See similar questions...

Urine-based pregnancy tests work by picking up a hormone that your body produces when you are pregnant. If the test is done too early in the pregnancy, it may not be able find the hormone yet and result in a "false negative" test. What is emergency contraception? (Morning After Pill) Emergency contraception (EC) may commonly be known as the morning-after-pill (MAP). It is a high dosage of female hormones. See similar questions...

Diabetes can indeed affect pregnancy. It can affect the baby's development. They may end up heavier than normal and the risk of premature birth is higher. Some women may acquire what is known as Gestational Diabetes during pregnancy, which is controllable with insulin injections, which goes away after birth. See similar questions...