I only found out yesterday that a am pregnant, only 4 weeks so very very early. I went into work today to find that slapped cheek is going around my class and school. The child is staying at school and does not need to be off. I was concerned so phoned the Dr and he said that I will need to have a blood test to see if I am immune, which I am going to have done tomorrow after school. The Dr said I do not need to stay off work, it is only contagious (sp) 20 days before rash. However, just come home and read on here that lots of people have been told not to go in until blood results back. I have not told anyone at work that I am pregnant as it is so early. Any advice gratefully received.