Slap cheek - 18 weeks

Rebecca • One of each 💙💖
Hello lovelies. I'm 18weeks pregnant working in a school, and we've now got some children with slap cheek. They're not in my class but my children mingle with them so it's quite possible that they could catch it. I'm having a blood test to see if I'm immune on Monday but just wondering if any of you have any more advice on what I should do. Some places say be off sick until it goes, others are saying not to worry too much... So just abit confused. Any advice would be lovely thank you. X