Hey there, and thanks for reaching out on Apple Support Communities, kenlee257!
From my understanding, some of your contacts are showing “Maybe” next to them. It’s definitely important that you can tell who’s calling with a quick glance, so I’d be happy to help.
To start, this is a feature that uses Siri to let you know who may be called and is based on phone numbers included in your emails. You can locate this feature in Settings > Siri & Search > Contacts > Show Siri Suggestions for Contacts.
If you disable the feature, do you still see your Mom’s number located in your Contacts? If not, you may need to go to Settings > Passwords & Accounts and check each account to be sure that any contacts you want synced are enabled. If everything looks good there, I’d recommend going to Contacts > Tap Groups on the upper right, then determine if any accounts are deselected. If so, enabled one, tap Done and see if the contact comes back. Enabling each one individually can help prevent any unwanted contacts from being synced.
I hope that helps, and thanks for using Apple Support Communities. Best regards!