I apologize for my lack of photography terminology. I am a beginner who enjoys taking pictures of my infant, and I would like to improve greatly. With the winter here and doing all my pictures indoors. I'm having an issue in fitting everything I want into the frame. I have a small house and cannot back up enough to fit everything in. For example, this past christmas I could not fit my family (three of us) in front of the tree in a shot because I did not have the room to set the camera back far enough.
I have a Canon Rebel T5i/700D and use a 50mm 1.8 lens, as well as the stock lens.
My question is what type of lens should I purchase? Any recommendations that are budget conscious? And what is the actual terminology I should be using? I was reading about wide angle lenses, but was informed that is causes distortions.