Loss Of Symptoms🤔

Noella

So, I took a pregnancy test a few days ago and based on my last period my due date should be around 10-10-20 and I’ll be 5 1/2- to 6 weeks pregnant. Yesterday and the day before I had serious symptoms.. heartburn, tender breasts, constipation, gas, fatigue and I was seriously hungry. But now today, NOTHING. No more symptoms but no cramping or anything. I’m still a little sleepy sometimes but I also have 2 toddlers. Could I be miscarrying? I haven’t been to the OB yet but is this normal at all? What should I do or look for?