Week 37 slight bleeding

I really feel you on this, it must have been such a scary moment to notice that. It's good that you already called your gynae and they gave you an explanation, that's the right move. That said, if the bleeding increases or you feel anything unusual, please do go in to see them in person rather than waiting, just to be safe. At 37 weeks you are almost there, so do take it easy and rest up.