Usually before marriage most women take measures to reduce weight, and once married this is not adhered to.
The happening of marriage is a mission accomplished and people let go after getting married, so their weight increases
Also after marriage, new house, new people causes some anxiety and depression, this can lead to overeating
But in some hormonal imbalance,
thyroid imbalance and pxod could be cause of weight gain
Women on OCPills also gain weight, due to effects of hormones
Next Steps
if you have gained weight, diet, exercise can help return to previous weight
Having sex doesnot increase weight