FaceTime call with my contacts

I just received 2 FaceTime calls at 6 am. All the names in the calls were from two different text groups I use. I answered the first call and two of my relatives had answered but there was a bunch of talking in the background of people that sounded like Caribbean accents. That’s not my family. No one spoke to us and there was no video. A third FT just came through as I’m writing this. It’s using another one of my text groups.

I know in the past there were FT calls coming from strangers with over 30 strangers on the call and using video but this is actually using my contacts. Unnerving!