Advise!

Kerry • Mommy of 2 special little boys!💙💙
I need help I do not know what to do. I'm 8 days late and took a pregnancy test last week and it was negative I also took one after being 5 dpo and was negative which I knew since it was to early. Sometimes I will feel cramps or a migrane and crave salt and think my period is going to start and nothing. Should I test again! Should I consult my doctor? Has this ever happened to anyone else before?