Had a miscarriage last july..then follows my regular period aug and sept. Got a symptoms of breast getting full,light headache,wanting to sleep more,..I am due for my oct period now but still haven't got it...is there a possibility I am pregnant

me and my husband desperate to have a baby.at the moment I am taking folic acid...they said it help .any other way to get me pregnant soon.I am 51 and my husband is 56.I am very active
please advise