Pregnancy hormones - myth?

Bridget
Hello! I'm super new to this - first time pregnancy and only 6 weeks - but my doctor just told me that pregnancy mood swings are a myth: As in, pregnant women don't get mood changes from pregnancy hormones. It's all a myth or paychosomatic/fake.
Is this true? Is this a scientifically-backed thing?
I had experienced long-term depression and anxiety before pregnancy (all managed now, woo!) and before I knew I was pregs (last week), I had a horrible "blue" day that was like the worst of my depression. Colours looked different, I felt wretched for no reason, couldn't think properly... Been super sensitive lately and couldn't figure out why.
Want to know if this is normal or if I should worry my depression's coming back. It's definitely not just in my head: felt like this before I knew I was pregnant.
My doctor was firm about there being no such thing as preg mood swings but so many people anecdotally seem to experience them.
(My doctor's a woman, if that makes a difference. :P)
What's your take? Have you experienced any mood changes or has your doctor told you something similar?
Thank you!

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors