to not discuss psychology appointments

A sincere question.
If you were so strong mentally, how were you so easily manipulated into giving up your course?

My last post was to Catterygirl

I agree with MissAdventure. The instructions come from the professional and lying about your MIL or anyone will not help you heal. However, beware the No Contact scenario popular since 2014 as the effects have proven destructive unless physical or sexual abuse is present. Your therapist should guide you in how to discover your feelings, if they tell you what you think and how you feel, find another therapist. This is about you and your self discovery. Stay compassionate.

@Survivor

And emotional abuse, which is just as damaging.

A house move to another country, thereby losing my teacher.

Ah! I hope you're happy and settled in your new home Catterygirl

Muffin -
Keep your own sessions to yourself, and suggest to your Mum that if she's upset about it she has her own therapist. At the same company.
How does she know that you're having this therapy anyway?

Explain that it's heartbreaking enough to go over things once with your therapist, to do it twice is far too traumatic. Tell her that when you're in a better you'll open up, and no, I don't think you're being unreasonable, no one likes being interrogated about something they wish to keep private.

You don't have to explain anything!

No is a sentence. When she asks you to tell her about the sessions with the psychologist, reply "No".

Well done muffin for seeking help for your well being and ultimately that of your new baby. Exactly as others have said... this is about YOU and for YOU. I think your mum fears (knows) what is being discussed here and she’s twitchy about it. Understandable. But these sessions are for YOU to get well.
Ask your therapist how best to fob your mum off.
Best wishes. x

Can't you say something like "Please, I don't want to talk about this Mum. It's too tiring going through it all again."

I think it is very insensitive of your Mum - and intrusive.

It sounds as though your mother is frightened.She will be aware of the traumas that occurred during your childhood and is worried you will blame her,as she probably doesn't know you already do.
It might be an idea to say that as parents we can all get things wrong, but we do the best we can at the time, and hindsight is a wonderful thing,and by seeing a therapist, you're trying to do the best you can for yourself,and this will help you parent your child.
Say if it throws up any issues from the past and you need to discuss it you will, but at the moment you're happy to keep it between you and your therapist. If she goes on just repeat until she gets the message and add, it's going ok thanks.
Good luck.

I can relate to what you say. My mil was truly dreadful for nearly the last thirty years and her legacy is a broken and dysfunctional family. My difficulty relates to my 90 year old Father. He expects me in good form all the time and if l am ever a bit down he does not realise that l am burnt out from elder care and even though he is a good man l don't like at all visiting him in the nursing home and relentless visiting. Take care of yourself. You are not alone.

A few points, I don’t know your childhood back story, but if your relationship with mum is a difficult one why have you told her you have sought help? Why does she know when you have these sessions ? (as she rings up afterwards for a blow by blow description) It sounds to me as if you are guilty of drawing your mum into your business then resenting her asking questions
Do not take you Dads advice under any circumstances
Do not tell your mum where or when you go to therapy unless you are prepared for questions
It is only human to be curious and if you drip feed your mum bits of information expect the third degree I do not really understand why you invited her to know your business in the first place.

Your mother could well be trying to find answers through you for her own problem/s ? Hence the reason for her unacceptable and pressing curiosity.