Stopped taking depo a year ago & still not pregnant

Gabrielle • I`m gabrielle 20 years old and married to my amazing husband. We are ready for a family!
Me and my husband are eager to have a baby I stopped taking it last may 2013, so almost a year already. Me and my husband are very sexually active but still no baby. Has anyone who's taken depo have/had the same problem. Should I be worried? I'm very young so i don't know what's the problem);