Im getting so frustrated with my SO... whenever he is home, he treats me like im lazy. We have a…

Im getting so frustrated with my SO... whenever he is home, he treats me like im lazy. We have a puppy that has to stay on a leash because we are potty training her, and guess who gets stuck with her? Me! I already watch her while he is at work, and now he just leaves her leash on the door knob and expects me to watch her while cleaning... I feel like this is going to happen when our baby arrives too... he says he will help out, but Ill probably just get stuck with her and never have time for myself..