 [ Symptoms ] if i had sex with one person and had my period 6 days later could i get pregnant  i had sex with one guy on 4 1 2013 started my period on 4 6 2013 it lasted till 4 10 13 i had sex with a different guy on 4 9 13 and have been with that same guy since i found out im pregnant which was 5 3 13 i went to the er for bad cramps and back pains they took blood and told me my hcg levels were low and to come back on 5 5 13 the levels had gone up is there a chance my child is the first guys [ Disease ] no