i had a miscarriage July 7th. usually after a miscarriage you are most fertile. my fiance and I have…

i had a miscarriage July 7th. usually after a miscarriage you are most fertile. my fiance and I have been doing things ever since then........ I happen to be having light cramps(more ovulating) could I possibly be pregnant again???? yesterday i had nausea....... and I've been having gas again....