Boyfriend problems

Ok so he works and come home and thinks he should just be able to lay around for the rest of the day but little does he realized we have a 9 month old son and I just found out I am pregnant again.... I am so tired of doing everything thing around the house and taking care of our son but when I try to watch one show and take a shower he complains about haveing our son for 2 hours.... ughhh I am out of things to try to make him realize I need HELP and just because he work it doesn't not give him a free pass from being a parent. Any advice? ??