Not Feeling Pregnant Everyday!!

Stacey
I'm 12 weeks & 3 days pregnant had a miscarriage last July baby died at 6 weeks & my symptoms disappeared & I didn't notice but slightest bit of something not feeling quite right this time I worry I've got my first scan on friday 15th but worrying if I go the sonograther will tell me there's nothing in the sac again I'm besides myself any tips??