4 weeks and 3 days pregnant with hardly any symptoms

So I got a positive on 9DPO and felt fatigued in the beginning which disappeared around 11DPO. I have only felt mild cramps that come and go, sometimes dull aching. My boobs are slightly more swollen and hardly swollen. My last pregnancy was in Sept of last year and it took me a year to be pregnant again so I’m feeling nervous, I don’t feel pregnant at all and had more symptoms last year like fatigue and cramping so is having little symptoms better? Does it mean I am less likely to miscarry this time. 🤷🏻‍♀️…has anyone had little symptoms like me and miscarry. I asked for an early vaginal ultrasound for 4 weeks 5 days due to past miscarriage history where progesterone was low. So I want to get blood work done to see my numbers. I also have hypothyroid and need to get my numbers checked.