I do wish you luck rachk32
Please though, don't take this the wrong way but ere on the side of caution with this vaccine.
Take these thoughts on board -
You realise they will give you a full 3in1 vaccine MMR as just rubella is not available on NHS. Mumps, Measles and Rubella.
They will say there is "no evidence to suggest" as there hasn't been full trials on their safety in these circumstances.
Yes lots of babies will have been fine, but what if the baby got to 1 yrs old and there was developmental problems of any kind - they are not going to agree it may have been that vaccine - you can't prove it and they can't afford it.
Catching Rubella is only dangerous to the baby in the first 4 months (roughly) (google it for exact number of weeks).
It's winter, German measles used to generally circulate (if at all) In Spring, Summer and autumn but not winter. If you fall pregnant between now and December you are safe.
Google the full contents of this vaccine, vaccines tend to have everything from animal genes to alluminium in them.
Do you think it is so imperative to have this vaccine?
By the way, I have no immunity to rubella either and have had 2 children.
My cousin was paralysed and blind following a rubella vaccine at 16. They are not always as safe as we are led to believe and I certainly would think twice about putting that through your body if a new baby is about to grow in there.
This is a great time of year for you to fall safely pg without worrying about the dangers of german measles in early pg.
Good luck. x