With my 3rd son I was diagnosed already. I wasn't on meds and no one was overly concerned about me
(meaning my OB). Sometimes they would ask if I felt okay mentally. I wasn't in therapy either. I just seem to do ok in pregnancy, even though things were pretty traumatic around me at that time, the pregnancy is what kept me going.

But, I only gained 3 lbs due to the trauma happening around me, I couldn't eat much. It was fine because I am overweight. So they wanted me to gain less than 10 lbs anyway.