All About Labor Medications
If you are on any long-term medications (say, for instance, an antidepressant), you will probably be given them as usual during your hospital stay. If you have a long labor, you might be given sleep medications, especially for a long induction (often, you'll be in the hospital overnight for cervical ripening).
If you want to have an intrauterine device (IUD) inserted right away, it's best if it's inserted within minutes of delivery of the placenta. Any later, and it's quite likely to be expelled by the uterus. So if you want an IUD right away, your doctor will need to know ahead of time to have it ready. Most doctors like to insert them later -- for example, at your first postpartum visit -- when the risk of expulsion is low, so this might not be an option for you.
If you want to go on a birth control pill, talk to your doctor about when you should start it and what kind you can take. Also, make sure to discuss the safety of your medications during breastfeeding (if you are nursing) with your doctor and your baby's doctor.