I had a nosey and and I think you’re correct!If you go and look at the reveal photo on her grid the photographer is tagged. I've gone for a snoop for clues. The photographer has done pieces for both New and OK magazine recently-ish. Could be on retainer for OK given the frequency of work for them.
Cash Cow 2 has lived up to his/her name already. An OK Magazine deal is real and I'll eat my hat if it's not true.
ETA: Spied Ron's newborn shoot is on display in her studio. So 100% the photographer Hinch will use. You wouldn't find someone new if your first child and maternity shots were done by the same person.