Hi kvishuk,
Thanks for coming to Apple Support Communities for help today.
You can read more about Emergency SOS here: Use Emergency SOS on your iPhone
A text message would only be sent to your contacts after an emergency call has ended. This would be expected behavior if you accidentally activated Emergency SOS? Do you have a call in your call history?
"After the call ends, your iPhone sends your emergency contacts a text message with your current location, unless you choose to cancel."
If you do see emergency calls you didn't make, we'd advise contacting Apple Support for a deeper dive.
Have a fantastic day!