It’s the hormonal change to blame for the hair loss—the hormones level increases during pregnancy, especially estrogen, oxytocin, and prolactin. The level of the same hormones significantly drops after delivery that starts getting normal after some time. However, prolactin level keeps high until the breastfeeding period ends. With the help of a healthy diet and the use of a good shampoo can help to control the hair loss and grow the new hair. However, don’t rush and opt for expensive shampoos as some of them contain a harmful chemical which you can’t use during breastfeeding