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High progesterone levels during early pregnancy are a normal occurrence because progesterone is produced in the placenta, according to the National Women's Health Resource Center. High progesterone levels combined with h... More »

www.reference.com Health Women's Health Pregnancy

Progesterone helps maintain a pregnancy until birth, according to the American Pregnancy Association. The corpus luteum produces the hormone to thicken and prepare the uterine lining for implantation. It continues to pro... More »

www.reference.com Health Women's Health Pregnancy

Some early signs of pregnancy are tender breasts, fatigue and mood swings, according to WebMD. Some women may also be disgusted by certain foods, feel lightheaded, or suffer from nausea and vomiting in early pregnancy. More »

www.reference.com Health Medications & Vitamins
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High progesterone levels are not an accepted indication of being pregnant with twins; rather, high levels can indicate pregnancy, cancer or overproduction of hormones, notes Everyday Health. The most accurate way to lear... More »

www.reference.com Health Women's Health Pregnancy

While early pregnancy often involves abdominal symptoms, it is not necessarily the case that any kind of "weird feeling" indicates pregnancy. Abdominal symptoms associated with early pregnancy include constipation, bloat... More »

www.reference.com Health Women's Health Pregnancy

During pregnancy, if a mother is infected with cytomegalovirus, the virus in her blood crosses over the placenta and infects her fetus' blood. It is most common for a pregnant mother to receive exposure to cytomeglovirus... More »

www.reference.com Health Women's Health Pregnancy

According to Women's Health, decidual bleeding during pregnancy is caused by the coming apart of elements of the uterine lining and is common in the early stages of pregnancy before the placenta and lining have joined. B... More »

www.reference.com Health Women's Health Pregnancy