maternity clothes

I remember one time my mother told me that when she was pregnant with me she didn't feel the need of wearing any maternity clothes it is also because in her time, which was about 30 years back, maternity clothes used to cost a bomb. She said wearing my father's jeans and shirt is the most comfortable at that time since they can't afford to buy a maternity clothes. But now a days you'll notice there are so many maternity boutiques exclusives only for pregnant woman.Yikes! getting pregnant is really expensive!!!