I have an android phone, can this phone connect to my iPad to use FaceTime.

FaceTime can be used only between Apple Devices.

There is actually, but you have to invited to join a call from an iOS device --> Join a FaceTime call from an Android or Windows device - Apple Support

SravanKrA! Where have you been, we were worried.

SravanKrA:

I’ve heard, though I’ve never looked for it, let alone tried it, that there is a Web interface to FaceTime, that can be used by non-Apple devices.

Did I misremember, or misunderstand?