Anyone here go to therapy whilst they are expecting?

I have been waiting 6 months for my new therapist as it was deemed my issues were too complex. I have finally been sent my first appointment- But now I’m scared, I don’t want them to keep diagnosing me with stuff and see me as an unfit mother. I don’t know if this is completely irrational, is this something that happens?

I wasn’t pregnant or planning on getting pregnant when I was referred.