There are two things an expectant lady can count on hurting postpartum: her vagina and boobs. The former is pushing a seven-pound life out so naturally it would endure some pain. And breastfeeding or not, the breasts are going to take a hit from engorgement. New mommies may expect that to be the only ache, but the Motrin doesn't stop there.
To see what else may need recovery,
During labor, some women's knees are placed by their ears as they push. The pressure can give the joints quite a workout that requires some ease of movement. That same forward pushing motion can also make for a sore lower back. New mothers often hunch forward as they learn the ropes of nursing which can compound the trouble. But alas, these pains will all disappear in time and mama may find her knees stronger than ever allowing her to run after that two-year-old rascal!