you need to get your immuity checked.
if you have had it, and are immune, then relax and breathe easy, baby is in the best place and protected by you.
if not, then you might well need to be vaccinated before baby comes, and also hope that baby comes after the incubation period.
my DD2 cuaght chicken pox when I was 38wks pregnant with DD3..............I had never had it, tests confirmed this, and so I was given 4 injections to preotect me and her, which in fact never worked and so we both cuaght it, she being born with it, right on DD1 coming down with it.
DD3 has been left with an immune defiiancy, and both she and I, altho being re-vaccinated against it, still have no immunity and are constantly at risk from it.
now, this is worst case scenario obviously (almost, worst case is very poorly baby), so the likelyhood of that is very rare according to our paed, but it is possible so you really should get checked to be on the safe side.
if it helps, being 35wks is slightly better (unless your babies come early) as baby is more likely to bypass the incubation period (which is 10-21 days).
I hope all is ok, and your DD is ok