Slapped cheek disease and 3rd trimester pregnancy

[ChristmascomesYEAHBUTonceayear]

Can anyone give me advice about "slapped cheek" disease and the risks to women in their third trimester of pregnancy. I'm nearly 33 weeks pg and received a letter today from dd's school nurse that a child in her class had slapped cheek disease. All the information I can access says that there are risks to women who contract this illness before 20 weeks (miscarriage and stillbirth), but I can't seem to get any information as to whether or not it poses the same risks in the third trimester of pregnancy. I spoke to my OB's nurse today who just said that I needed to come in and have some blood tests to see if I am already immune and further blood tests in a couple of weeks to see if I have caught the illness. She wouldn't or couldn't tell me if there were significant risks at this stage or not. Hoping you wise mumsnetters can help. Thanks

Found this 'How pregnant are you? The risk to pregnant women and their unborn babies post 20 weeks gestation is zero. If you were under 20 weeks when the exposure took place then you should mention it to your midwife/GP and get a blood test done to confirm your immunity (50/50 chance as Berolina says).
While I wouldn't worry, I would ask for the blood test, and insist it is done (your GP might be dismissive of your concerns).
How do I know this? Because I had a slapped cheek disease scare in my third pregnancy and I was surprised at how seriously my consultant took it. While he agreed it was very rare for the baby to suffer any harm, he still felt it was an avoidable risk and should be investigated. I was immune, most UK-born women are. If I had not been, I would have been booked for a couple of extra scans to make sure the baby was OK thereafter. ' from here...

Sorry... didn't edit that very well!!!

There really don't seem to be much risks for your stage of pregnancy at all. Just really get the tests to be on the safe side.

you are fine. it is only in the early stages that tehre isa risk of miscarriage and that risk is slight....
no risk now