Symptoms off and on

I’m terrified of miscarrying, due to family history of miscarriages. Which may be stupid, but that’s just what I’m dealing with.

My symptoms come and go, is that normal? I’m literally only 4 weeks 4 days, but my hcg is doubling as it should so far. It went from 5 to 12 to 123 in five days. I sometimes have light cramping on one side and my boobs are off and on sore. I know it’s way early, but it’s taken us a lot of fertility treatments to get here. I’m already on progesterone supplements due to a low progesterone history. My progesterone was good at my last lab, though.