Pregnancy 

This may be the reason for pregnancy glow. During pregnancy, hormone level and more blood flow to a warmer body cause more profuse sweating. Some women may also experience sweating after delivery as the body releases excessive water retention. Another reason is due to an increase in your thyroid hormone. Most women sweat more as their sweat glands become more active. This is especially in the third trimester as the oil glands become active and you can develop pimples or acne.