So my daughter came home from nursery with what I thought was a small scratch on her face. I'm pretty sure it wasn't there in the morning when I dropped her off. When I bathed her I noticed it looked more like bumps/bites/spots.....in a line of three. I googled bites in a line of 3 and it came up with bed bugs and I'm horrified. I've frantically checked the mattress for signs and found the occasional tiny black bit but no other signs...aibu to jump to the conclusion it's bed bugs? How do I know and if it is what the hell do I do?