Your fat distribution is likely to become modified to put more on your hips to provide a more womanly hourglass-shaped, fertile appearance, as the body becomes more fertile, which it will, provided other essentials are present. This shape is of course intended to attract males, and be visible from quite a distance, for obvious reasons. Most don't realize, but even the pelvic bone is very much alive, and subject to alterations in its shape even if a person were say, 38 years old. Healthy women can have children up to about age 65, although fewer than 0.5 % of women meet this definition of healthy.