Help!!!

Colleen
Hey ladies need your advice I've been trying for a baby for 3 years now I've had 2 miscarriages and this month just over a week ago ive been getting stomach cramp, back ache, metal taste in mouth, feeling sick my period isn't due till Friday but I did a test this morning and it's negative have I done one to early don't no what to think??? Has anyone had this before??