For women who have a regular monthly menstrual cycle, the earliest and most reliable sign of pregnancy is a missed period. Sometimes, women who are pregnant have a very light period, losing only a little blood.

Other signs and symptoms of pregnancy are:

Feeling sick
You may feel sick and nauseous, and/or vomit. This is commonly known as morning sickness, but it can happen at any time of the day or night. If you're being sick all the time and can't keep anything down, contact your doctor.

Find out more about coping with nausea and morning sickness in pregnancy.

Changes in your breasts
Your breasts may become larger and feel tender, just as they might do before your period. They may also tingle. The veins may be more visible, and the nipples may darken and stand out.

Peeing more often
You may feel the need to pee more often than usual, including during the night. Other signs of pregnancy that you might notice are:

• constipation
• an increased vaginal discharge without any soreness or irritation
• feeling very tired
• a strange taste in your mouth, which many women describe as metallic
• craving new foods, or losing interest in certain products that you previously enjoyed, such as tea, coffee, tobacco smoke or fatty food
• If you think that you might be pregnant, find out more about taking a pregnancy test.