Yes, on both accounts! As long as you’re wearing Shapewear that is designed to fit the needs of your pregnant figure, you are free to contour and support your silhouette using compression garments.
More so during your postpartum recovery, you are actually advised by medical professional to use a compressive belly-band to help the uterus return to its normal size, and help relieve the swelling and pain that naturally comes with the healing process.