You already know that having a baby changes everything. Your life will never be the same, and your body, which has already done a number on you, still has a few surprises in store. Not everything falls into the "weight" category, as you'll soon discover. The first six weeks after delivery will be a parade of comings and goings from head to toe. Here's the poop, so you'll know what to expect.

The Incredible Shrinking Uterus
As soon as you give birth, your uterus begins to shrink and contract. This explains the menstrual-type cramps (afterpains) you feel soon after delivery. As you shed the lining that thickened during pregnancy, you'll have a bloody discharge (called lochia) that starts out heavy and gradually diminishes. Use sanitary pads instead of tampons at this time to avoid infection. The discharge should stop after about six weeks, when your uterus is back to normal.

Post-Partum Peri Pain
This should come as no surprise. If you have a vaginal birth - with the stretching, tearing and episiotomy cutting - the area between the vagina and the anus will be somewhat tender and sore. Ice packs and pain relievers should ease swelling and provide some comfort. Use an over-the-counter anti-inflammatory cream for those hemorrhoids you might have acquired in the pushing process. Chilling a few times a day in a tub filled with a few inches of warm water can also have a soothing effect on your nether regions.

Weight Redistribution
We had to get to the "weight" part sooner or later. Childbirth itself removed around 10 pounds, which includes the baby, the placenta and the amniotic fluid, so you're off to a good start. Getting rid of the rest of the weight you gained will take more time and effort, and it's relative. The more weight you added during your pregnancy, the harder it is to shed later. Dedication to diet and exercise should get you back to your old size, but you may find your old jeans don't fit like they used to. New curves in places like your breasts and hips may make an appearance. Fat deposits may have changed and muscle tone may have been lost, creating a bit of a new you. Strength-training exercises can do a world of good for these problem areas.

The Skinny on Skin
Follow the purple-red roads over your breasts, around your belly and across your butt. No, you won't wind up in Oz, but you'll be wondering how to get rid of those stretch marks. They'll fade over time and become less visible. If you plan to use topical creams or ointments, it's not safe to use them while you're nursing.

Thinner - Where You Shouldn't Be
Bid a temporary adieu to that gorgeous head of hair you had while you were pregnant (thanks to all that estrogen.) When those high estrogen levels start to settle down about 12 weeks after delivery, your hair follicles step up their growing-and-shedding routine, so it may look like your hair is taking a hike in a hurry (gasp!) Not to worry. Unless you're low on iron (see a doctor!), the rapid hair loss should taper off in three to six months.