Hair loss

Elizabeth • Hi everyone. I'm pregnant with my first - due November 25th. My husband and I weren't ttc, but we're getting very excited at entering this next stage.
Yesterday at the hair salon, my stylist noticed a quarter sized bald spot at the crown of my head. I've been freaking out and googling nonstop ever since - most sites point to alopecia brought on by stress/hormones. Anyone else going through this? I'm calling my Dr today, but I figured it was worth asking! I'm 25 weeks and everything has been going well so far!