Trying to conceive after misscarrage!

Leeah • I am a mother of 2 ( boy 8 and girl6) i had a miscarriage in july ( 14 weeks) since then ive been trying to conceive.
Im so di hearted! My partner and i didnt even try to get pregnant with the baby i lost. But since then we have been trying for the last 7 months with no luck! Im heart broken each month when aunt flow pays her visit. Anyone have any suggestions to help us conceive? ( i was 4 months when i misscarried)