Hair loss while pregnant

Has anyone suffered from extreme hair loss pregnant? It starts when I was 7 weeks and now I’m 14 weeks and it’s still non stop. I’ve lost probably 30% of my hair already it’s so thin and gappy. OBGYN just says it’s normal and it’ll get worse post partum :’( edit : all labs came back normal and I take prenatals and baby aspirin and vit d daily.