Blood test results...

LJ • 1 baby girl with another baby on the way
All of my blood tests came back great, doctor said my iron is brilliant and I'm in perfect health however I am non immune to rubella. What exactly does this mean for me? I know I have to get two injections after birth to be vaccinated again, I had been vaccinated as a child but it's obviously run out and I must avoid people with the virus..anyone else the same?