When is the right time to buy a maternity bra?

The right time is as soon as your breasts begin to swell and become tender. Maternity bras are different from normal bras in that they are specially designed to give extra support. They are also made to fit comfortably on the first (tightest) hook early in your pregnancy and adjust to the final (loosest) hook by your last trimester. However, it is not unusual for women to need a whole new size bra towards the end. Most mothers-to-be need to start wearing a maternity bra by the fourth month of pregnancy.