Prenatal vitamins should be taken as usual. Kegel exercises will help you strengthen your pelvic floor. Regular exercise is essential. Consume plenty of water and stay hydrated. Consume a diet rich in fruits and vegetables, low-fat protein sources, and fiber. Consume enough calories (about 300-400 calories more than normal). Submit to second-trimester screening testing. (Weeks 18–20) Consult your doctor. If everything is going well with your pregnancy, you should visit your doctor once a month throughout the second trimester. Get a flu vaccination.