Pregnancy and PMS (premenstrual syndrome) may have similar symptoms. Signs of pregnancy can occur before a missed period, according to Mayo Clinic. While waiting for a period a woman may easily mistake early pregnancy changes as PMS symptoms.

It's not possible to tell whether you're pregnant immediately after ovulation. In fact, the embryo doesn't even begin to implant into the lining of the uterus until about 6 days after the egg is fertilized. Only after implantation does your body produce the hormones that cause early pregnancy symptoms.

Tingling in the thigh, also known as meralgia paresthetica, is a condition characterized by a tingling sensation in the outer part of the thigh muscle, or quadricep. The condition results when the nerve responsible for supplying sensation to the surface of the leg gets compressed.

For many women, the first time you feel your unborn baby move is one of the most wondrous parts of being pregnant. Toward the middle of your second trimester, you'll feel the first fluttering movements of your baby, but by the sixth month, those movements will turn into noticeable kicks.

Fluid retention is very common during pregnancy, particularly in the later stages. There are a few things you can do to prevent or alleviate this problem if it happens. If swelling occurs suddenly or is accompanied by repeated weight gain of more than 2 lb.

Traditional symptoms of pregnancy such as missing a period or morning sickness, are recognized easily. However, there are other symptoms that also point to pregnancy—even though they are less common.

Once you know you're pregnant, your next concern will likely be, "Is my baby developing normally?" Measuring your blood level of the pregnancy hormone human chorionic gonadotropin, or HCG, produced by the growing placenta, every few days can help determine whether your pregnancy is progressing well.

Whether a woman wants to be pregnant or would prefer not to be, if she's getting unusual around the time she expects her menstrual period, she's likely to want to know whether they might indicate pregnancy. Headaches can be one of the earliest signs of pregnancy, and many women experience them.

It's possible to have what appears to be a period, even if you're pregnant. It's also possible to have a negative home pregnancy test and still be pregnant. If you think you might be pregnant, even though you're having vaginal bleeding and you have a negative pregnancy test, talk to your medical provider.

According to Sutter Health, some women have Braxton-Hicks contractions during their pregnancy; a Braxton-Hicks contraction is an irregular, non-painful tightening of the uterine layers.

Diastasis recti occurs when the left and right side of the abdominal muscles separate, leaving a gap in the center of the stomach, according to the website Pregnancy-Info.net. This condition is common in pregnant women and premature newborns.

Painting during pregnancy is not recommended, because the exact effects of the paint fumes are not well-understood by doctors and scientists. Different types of paint pose different risks to pregnant women.