I got married last year I got pregnant for about 2 months and had a miscarriage since than I have tried to get pregnant but couldn't last month I had my period twice and this month I missed my period for about a week now I feel like am pregnant, with the heartburn headache and constipation the pregnancy test says positive and I check again and its negative so am I pregnant help

Try another test or see your doctor. Be sure you read the test in the time stated on the brand you are using. Reading it after that time can sometimes give you an incorrect result.