Pregnant, supply tanked

I just found out I’m pregnant a few days ago (4-5weeks), and for the past week or so, my supply has tanked. It started with 2-3oz less each day and is now up to 6-8oz less than my normal output. Is there any way to increase supply while pregnant? I’ve been EPing for almost 10 months, and my goal was a year, without supplementation. Obviously if I need to, I will supplement with no hesitation, but I’ve worked so hard thus far to make that goal, I’m sad to see it cut short.

Thanks in advance for any tips!