Suggest Treatment For Conceiving After A Miscarriage

i am 32 years female and married 06 months back after one month of my marriage i succeeded in conceiving in the second month, but after 07 days of conception lower back pain started and finally resulted in a mis-carage. then i took rest and tried again after an interval of 01 month since then i have been trying again but from the last two months i am failing to conceive again this time i feel dry vagina when my periods are likely to start within 04 days. my all medical examinations are ok. please suggest me the remedy and easy/safe way to conceive (moreover my husband is facing problem of prostomegaly grade 1 can the same effect my conceiving)