Is this iPad connected to my account

You can verify (and manage) the devices that are signed-in to your AppleID by following the advice outlined here:

Check your Apple ID device list to find where you're signed in - Apple Support

If you are concerned that your AppleID account has been compromised, you should secure your AppleID account credentials:

If you think your Apple ID has been compromised - Apple Support

We are users from around the world and would have no idea what if anything is connected to your account.

Sign into your iCloud account or your Apple ID account and see what devices are listed there.

If you feel endangered, seek immediate assistance from

your local authorities.