Anxious and scared but trying to be positive

I miscarried in October, had a chemical in November.... I believe I’m 5w2d according to last period (is that how I measure? I think I know when I ovulated so I’m not too sure which is the right one to go by) anyway, I haven’t had any symptoms really sometimes I feel nauseous but it’s quick and I am always tired but I also have a 2 year old and a puppy lol... any words of encouragement are greatly appreciated ❤️🧡💛💚💙💜💖