DD and DS got sick heaps over winter and they go to childcare 2 days a week. Apparently its just because all the kids pass it around so more likly to get it. Our kids, especially DD were getting sick nearly every week. They'd go one week and have the next off because they were sick with soemthing or other. They are fine now which i am told is because they've built up a stronger immune system to handle all the bugs better than when they started. So the only advice i have is to just ride it out because that's what we did. I know that is hard though, especially while you have bub due so soon. i nearly pull our kids out too but i'm glad i didn't now.