I made an effort to watch this episode, and wasn't that impressed. Felt it was trying to hard to pull on the heartstrings, and be a build up to the Christmas Special.
I hope the baby being born isn't the focus of the the special as going by countryside, etc., baby must be due in the Autumn.
Very cross about Mrs Hall not being able to live her own live. I thought they were showing be as at at last standing up for her right to have a future about her, not everybody else.
I thought she was going to go (and expected future episodes to show it all going wrong) and that Helen would have to move back and become housekeeper (which I think in real life at the time, it would have been expected - that she would take on the female duties, and of course perform them for free).