After a few days & 4 positives, bleeding?

It's not much blood. Between pink & red. Tests are still a strong positive. My question is- do I need to rest? Would it help? I don't want to lose the little babe. Only 4.5 wks along so far. I've had 1 rainbow baby & have waited a few years, really wanting my 2nd babe & then we are done having kids.