I think my mom might be cheating on my dad?

My dad was getting texts from a random number once saying things like babe your hot... We have the same phone so I picked it up thinking it was mine. It was only him and I in the room. I confronted him about it and he had no idea. My mom then mentioned something about it the next day. It ended up just being some random person getting the wrong number. I don't know if this helps. I would say talk to your mom about it. If she is up front about it then I wouldn't worry about it because your dad probably already knows.