R.C.
You do need to call your Dr., but this is not an emergency. First, more than 50% of the population has antibodies to this virus by adulthood. Hopefully, you are one of those who had the disease (even if you never had symptoms) and are immune. If not, although you do need to have a blood test to confirm whether you have antibodies or not, there is nothing your Dr or midwife can do to prevent or treat Fifth Disease. Chances are good that your pregnancy will continue and produce a healthy baby even if you do develop Fifth's disease. Only a small percentage (10% or less, if memory serves me correctly) have complications with Fifth Disease when contracted during pregnancy. Your Dr will likely want to do more ultrasounds during your pregnancy especially if you develop symptoms of the disease or your blood test shows you are not immune. Just make an appt Monday with your OB and discuss it with him/her. Your kids are no longer contagious if they have the rash, so there's nothing you can do at this point to prevent getting it yourself. My kids and I all got Fifth Disease this past Spring. Wasn't fun, but we made it through just fine. I'm so sorry you have to go through this for I know you must be worried. Nurse Midwife mom of 3