Cramping at 5 weeks

I felt extremely swollen in my tummy yesterday and I had missed my period so I took two different pregnancy test and and they were positive. Most of the next day I was cramping. My first pregnancy I felt like that and I missed caried at 13 weeks then my second time it was all good I just had so much nausea. Now I am cramping just today and a little yesterday and I am kinda scared.