Hair falling out!

Kate • Mama to the cutest baby boy.
My hair has always been thin and fine but the last few months of my pregnancy it was the thickest ever. It was great having full hair that didn't shed every step I took. Now that I am 4 weeks post partum, I notice that I am starting to lose it again. I know it's hormonal but I'm worried that I'm going to lose most of it and I don't know how to slow it down. :(