Pregnancy affects different ladies differently, some folks do experience tiredness, hypersomnia, an increased tendency to sleep and headache. This is more so if you are not mentally prepared for a baby. Nausea, mood swings and temperature disturbances are other features seen in some pregnant ladies. You have to find out whats best suited for you. Try to take it easy, having a baby is a joy not everyone experiences, and consume plenty of liquids, rest if possible and take iron and folic acid supplements. Visit your doctor regularly, much of these troubles vanish as pregnancy progresses.