How do my hormones affect my hair growth/loss?

It does both: Male hormone cause men's baldness. Female hormone boost women's hair when pregnant but its drop after delivery causing hair loss. Menopause also causes losing hair.

Hair loss: Hair loss is primarily genetic avoid chemical damage as dyes etc .Keep hormones in balance if you don't get radiation or chemotherapy you left with using hair stimulating products such as Rhogam etc many claims try it no harm done.