Or add a dependent under My Info. Or are you looking for a return you did for your child? Online is only good for 1 return. If you did a second return it overwrote the first one. Or you are in the wrong account.
To find another account. First LOG OUT of whatever TurboTax account you're logged into right now. Then use this TurboTax account recovery website to get a list of user ID's for an email address. Run the tool against any email addresses you may have used
https://myturbotax.intuit.com/account-recovery/
If you used the Desktop CD/Download program then the only copy is on your computer and not saved or stored online.
You can also request a transcript from the IRS
https://www.irs.gov/individuals/get-transcript
