Loosing so much hair!!! Need help!!!

I lose so much globs of hair on my head when I wash my hair is this normal? I'm 3.5 months pregnant and hope this stops soon it scares me I feel like I'm going to go bald!!! I wash my hair every other day and changed my shampoo to a less strong one incase that was the case but I'm still loosing a bunch in the shower when I wash it still! And loosing some when I brush it. I'm like scared to even touch my hair now... Anyone else feeling the same way or have any advice? Thanks!