One of the things you might want to start thinking about as you enter your third trimester is a birth plan. Although things can change depending on the circumstances of the birth itself—one of my friends actually gave birth to her third child in a borrowed SUV on the way to the hospital—or how you're feeling in that moment, having a map to start out with can only be a good thing and help you stay on course and not feel lost. There are many checklists available online that will provide preprinted birth plans, but it can be as simple as opening a document and writing down a few lines about your preferences. Here are some things to think about as you create your birth plan:
Who do you want in the birth room with you? Your partner or a labor partner is pretty much a given—things have changed since the days when I was born, and they forgot to notify my dad until three hours later. However, friends and family may be eager to participate. If you've given written instructions to the hospital staff beforehand about who to let in and who to politely turn away, it will make things less awkward in the moment.
Pain relief is the second major component of a birth plan. Your options range from hypnosis and acupressure to an epidural or other major anesthesia, and you can request that you not be offered pain relief unless you ask for it. The same goes for Pitocin, which speeds up your labor. Hospitals nowadays seem to try to make this appear a natural part of the birthing process, but they can't force it on you.
There are issues to be dealt with after the birth itself as well, most importantly, how the baby will be fed and where he or she will be kept. Even in the best hospitals, the nursery can be something of an assembly line, as I found out when they gave my daughter, who was supposed to be breastfed, exclusively sugar-water to pacify her. If these issues are crucial to you, consider hiring a doula to act as your advocate.