Hello Menace—22,
It sounds like you are wanting to access your iPad after forgetting the Apple ID, right? What happens when you try to retrieve your Apple ID credentials? If your husband created a new Apple ID a few months ago, does he still have emails from Apple?
If you forgot your Apple ID email address or phone number
"Other ways to find your Apple ID
You can check if you're signed in to the App Store, FaceTime, or Messages on your iPhone, iPad, or Mac, or check if you're signed in to iTunes for Windows on a PC. You can also go to iCloud.com or appleid.apple.com and see if your Apple ID prefills on the sign-in screen.
FaceTime isn't available in all countries or regions.
Check your inbox for emails from Apple

Your Apple ID might be included in some emails from Apple. Search your inbox for receipts as well as repair, support, or billing emails from Apple.
If your email address is masked (j*****@icloud.com), the number of asterisks might not match the number of characters in your email address. "
Regards.