MMR and others for child with autism and sibling - can anyone point me to the information I need?

[StarlightWonderStarlightBright]

Thank you.

DS (4) has had his baby jabs and has autism. I am confident that none of the jabs have caused his autism, but I am not confident that they are a good thing in a general sense for someone who has autism and the biological complications that sometimes go with it. I am being hounded for him to have his preschool booster.

Now DD is in perfect health in every way that I can see. She has had all her baby vacs (Although quite late) but not yet her MMR. I halted all vacs when I got ds' diagnosis.

Now ideally, I would like to start up the vacs programme with them both from where I have left off, but felt that to do so without being fully informed of the potential risks would be irresponsible and I would never forgive myself.

I'd like to point out that it isn't the MMR in particular that I am worried about, but vacs in general wrt to the specific needs and vulnerabilities of my children. i.e. one with severe autism, and the other at high risk.

Many TIA

My ds had his jabs at the usual times (not pertussis though because he had whooping cough at six weeks) although looking back the autism predates even the early ones as he was odd from birth if truth be told.
He had his boosters at the usual time and so after dx. I wasn't actually nervous but he had them in hospital as he had had anaphylaxis a few times and it was a precaution.
With dd I wanted her to have them all at the usual times but a major regression and subsequent assessment for autism meant that the MMR actually took place a week after her autism dx. This time it was the GP reluctant to proceed with MMR and she did have me sat in the surgery for an hour afterwards and asked that I phone at once of dd became unwell but she was fine.