4weeks pregnant and scared

Vijayasri
Hello everyone,
So i got positive on pregnant testing 6 days before my period on 13th dec.I had occasional nausea, tender breasts and fatigue and that was all. For the last 2 days I've no nausea or fatigue. I'm totally normal. I'm really anxious if everything is alright. I mean morning sickness is supposed to be worse by the day in first trimester. But how can i be normal!!! I took another test on friday and it cane out positive.