Start your exercise program by doing it fifteen minutes in a day continuously. Follow that pattern three times in a week. Gradually increase time for up to thirty minutes. There are certain tips for pregnancy exercises that could prove to be helpful. Before doing any exercise, try to warm up and take some time to cool down. Keep yourself active and walk daily for an hour or half. In hot weather, avoid any of the exercise which is strenuous. Try to drink plenty of water so that you may not feel dehydrated.