what am i gonna do?

Brittani • Im 23 years old and im trying to have a baby i misscarried last year and was heartbroken i wanna start a family with my fiance
Me and my fiance have been trying to concieve for months this month i thought it was finally happening because i was three days late but ended up getting af.... I feel so depressed i dont know what to do i wanna have kids with him but im afriad because hes 13 years older than me our times running out... Idk what to do