Okay Jem, at the end of this I will post a link to the NMC and their complaints referral, which is the route I think you need to go down here.
On that link, you'll see a list of steps to read through before you go ahead and fill in the form, this is to make sure that you are doing the right thing. First that you may wonder about is "does the employer know". Under this, a reason for going straight to the NMC is where there is a patient safety issue. This is because Employers are more likely to deal with things in house and then the NMC never find out. It's important to them that they know when patient safety is being compromised. In your case, I would not inform the midwifes employer as it is something that they are more likely to handle in house and as I explain in a bit, that is not an option here for the sake of you and her future mums to be. So, carry on through the steps and one will be a list of things that you can complain about. For your situation, it is "lack of competence".
The midwife you saw was dangerously incompetent in telling you that reduced fetal movement was down to you being a "big girl". This is why it cannot just go to her employers, but must be a straight referral to the NMC.
Put simply, my midwife, as I said, would have, the moment you said you had felt less movement, sent you into hospital maternity triage to have the baby monitored. I have been for it and the midwives there were adamant that they don't care how many times a mum to be goes in to be checked and if it's all fine every time. It's the lives of our unborn babies on the line and they will always happily hook us up for 30 minutes to monitor and reassure. They would far rather pick up on an issue sooner and give baby a better chance, than it be left too late and your midwife grievously failed you and your baby boy by not referring you based on your reduced feeling of movement. It doesn't have to be no movement, it can be reduced movement or even just a change in the pattern of movement. It is taken very seriously.
The risk of complaining to her employer is that it is handled in house and she carries on failing to take reduced/changed movement in larger mums seriously. She clearly has prejudice so I wouldn't trust an in house complaints system with babies lives at risk.
So, you have a very valid reason for going straight to the NMC, where they actively want patient saftey issues raised immediately and you have a valid category of complaint, being lack of competence.
You just finish going through the steps, download the complaint referral form, it's in Word...fill it in as thoroughly as you can and email it back to them or you can print and sent by post.
You are your babies biggest advocate and so do this without any worry of what will happen. The midwife failed you and your baby boy, end of.
You will have the opportunity to detail all of the smaller things, although they are not small, like...
"
Telling you the baby will be big because you are big, when your consultant has already told you that is not a worry. (Mention your consultant had no reason to worry here)
Repeatedly referring to you as a big girl.
Telling you that you should have a c section because you are a big girl (Mention your consultant no reason to worry here)
Telling you that reduced movement is due to you being a bg girl.
"
Then, when you get to the last part of the form, about patient safety, you need to go into more detail about the risk to the safety of your baby boy due to her insistence that lack of fetal movement is due to your size. Explain that you have been feeling movements without issue, so it is the reduction/change in your usual feelings that you were concerned about and that your size is irrelevant as if being bigger was an issue, you wouldn't have noticed a difference. Say that you believe it is gross negligence for a midwife not to take a reduction in fetal movement seriously and also highly unprofessional to assume that is is due to your weight, when you have had no problems feeling baby before.
https://www.nmc.org.uk/concerns-nurses-midwives/concerns-complaints-and-referrals/make-a-referral/
That's the link to the form and Jem, You really need to do this. For you, your baby boy and all other mums out there that may end up under her care.
As for changing midwife, write a separate letter to the employer/care provider stating that you have lost confidence in the competency of your midwife and require a new midwife to handle your antenatal care going forward as you are no longer comfortable seeing her and have raised your concerns directly with the NMC. That's pretty much all you need to say. End the letter with, "I am confident that you will refer me to a new midwife in these crucial final stages of my first pregnancy as the issues with (name of midwife) have caused me an unnecessary level of stress and anxiety.
Letter could be written as such,
Dear blah blah,
I write firstly to inform you that I have raised concerns directly with the NMC over the competency of your midwife (name of midwife). I have done this on advice of an unrelated midwife due to the serious nature of the complaints, mainly being that my reduced fetal movement was ignored and wrongfully blamed on my weight and also prejudice shown repeatedly during my care.
I write secondly to request that you provide me a different midwife going forward due to my lack of confidence following the most recent appointment.
I am confident that you will refer me to a new midwife in these crucial final stages of my first pregnancy as the issues with (name of midwife) have caused me an unnecessary level of stress and anxiety. I am due my next midwife appointment in week 36, which is the week beginning June 4th, so if you could provide me with the details of an alternative midwife and contact details to ensure I can book my 36 week appointment in good time, I would be very grateful.
Kind regards,
Your name, blah blah.