Nausea or morning sickness: Most well known early sign of pregnancy are experienced between 2-8 weeks after conception. This queasy feeling is due to the changes in the hormone levels the body experiences as it prepares for embryo implantation.

Delayed or missed periods: It is the classic early sign of pregnancy. The uterine lining need not be shed anymore so as to embed the embryo for growth.

Fatigue or tiredness: This pregnancy symptom starts as early as first week after conception.

Swollen or tender breasts: Within a week or two of conception, some women may notice changes in their breasts; they may be tender to touch, sore or swollen due to hormonal imbalance.

Darkening of areolas: The skin around the nipples darkens as the pregnancy advances in weeks, to prepare for the baby.

Backaches: Lower backache is also an early sign of pregnancy, though a dull backache remains throughout the pregnancy due to the increasing weight of the fetus.

Headache: Some women experience headaches early in the pregnancy due to sudden rise of hormones.

Frequent urination: Around 5-8 weeks as the growing uterus presses against the urinary bladder, one needs to make frequent trips to bathroom to evacuate urine.

Food cravings: This is a very classic early sign of pregnancy and lasts throughout the entire pregnancy. Some women crave for sweets and ice creams, while other may want salty food or pickles. According to pregnancy journal, this is one way of the body to take in the missing nutrients or augment poor diet due to nausea.

Implantation bleeding: About 6-12 days after conception the embryo implants itself into the uterine wall. Some blood spotting or cramping may take place at this moment of time. This is also an early sign of pregnancy to be watched out for.