Am I wrong?

Am I wrong for getting upset with my boyfriend for wanting to go out with his friends? We've been together for 4 and a half years, we have a 2 year old son and I am currently pregnant. I'm just bummed about because he works all day (6AM-5PM) and we barely see him and I honestly feel like I do all the work in parenting and around the house ie: I cook clean and do just about everything else.. maybe I'm overreacting but I just miss him and want to have all of his time when he's home.. am I being selfish? We used to always be together until he made new friends and whenever he goes with them he ignores my calls and texts and doesn't come home until early morning hours..