Hai mama, yes it's quite normal, depo can take a few months to fully wear off, especially if you were on it for a long time, so delayed periods happen to many of us. But since you're already a few months without a period and you're planning to get pregnant, I'd suggest checking with your doctor just to make sure everything's okay and get advice on what to expect moving forward, some mamas take longer to regulate, while others bounce back faster, so it's good to confirm your situation directly with them.