You can start your sex life, which you stopped from the day of pregnancy determination, if you want from the fourth month. But do take care to abstain from deep penetration. Also do not give pressure on stomach.
Due to hormone change the pregnant women will also be interested in sex. But do not insist her if she is not interested.
Try to be in cotton dress and make sure they are loose enough and you are comfortable in it.
Try not to use nail polish, deodorants and perfumes.
Include more of milk, cereals and fiber-enriched food.
Drink at least one glass of fresh fruit juice everyday.