Difficultly Breathing

Dallas

Lately any time I lay down whether I’m on my left side, right side or even elevated on my back I have a hard time breathing. Feels like I have to take really deep breaths with pressure on my chest. I’m 20w1d and have my next appointment next week. I’m going to bring it up to my OB but is this normal? I’m definitely getting bigger but still normal for my size. I can’t imagine when I’m 32+ weeks how hard it will be...