Will my time ever come

I lost our little one on Feb 8th and I was so confident that we were pregnant this month but that shows what I know . AF came 2 days early so I am not . It hurts so much getting a negative results every month when all we want is our rainbow baby . Has anyone had a missed miscarriage and got pregnant within a year ? I feel like it's me and I can't get pregnant. Right now I weigh 219 and I have been walking 3 miles every other day and my husband and I are quitting smoking together and I just feel like it won't ever come and I won't get pregant and my husband keeps saying it will happen just give it time . But when we lost our little girl I lost hope . I see women who don't want babies getting pregnant and I can't and we want kids . Just sad