Hey so for a month and a half ive been trying to concive,and for a few weeks,ive been having mild abdominal pain,i threw up all night once,my tummy getting a little bigger,im craving peanut butter crackers when i used to be disgusted by them,my period was a week late and only 3 days,light,and ranged from light pink to brown,fatigue ,headaches,but i test negative everytime? Idk if im like my mom she didnt test postive on a pee test till she was 4 months,or if im not really pregnant.help please????Also i urinate so much,eat way more than ever and my mood swings are crazy.