Get your heart pumping! Try adding cardiovascular exercise to your workout schedule before and during your pregnancy. Getting that blood flowing can help you manage your weight and therefore your lower back pain. Because obesity is a big sciatica trigger, getting in shape will relieve some stress on your spine, reducing your chances of experiencing sciatica when your pregnancy pounds further burden those spinal discs of yours (boy is that spine overworked!). The takeaway here? Cardiovascular exercise can help you control your sciatica and weight–two very important, interrelated things to get a handle on when you are pregnant.