Unhelpful Partner

So my husband works 30 to 40 hours a week, he is also in school, with one class online right now, and one class at our local campus. But he is registered full time to receive his VA benefits to help out financially more since I'm not currently working. I am a stay at home mom that does EVERYTHING for your home right now. But because I am 9 months pregnant, I do still need some help at home that I haven't asked for until recently because I don't like asking for help. But normally he doesn't offer to help. He doesn't like helping me unless people are around like family or friends, and he acts more like he's always helpful and caring. But he is one of those people I don't like asking for help from him bcuz he never enjoys helping me. But I do a lot to help him. And take care of our 6 year old son, (his stepson technically). He's just gotten to be really selfish as of lately. Do you feel like I'm being more selfish, or are my feelings validated bcuz I kind of expect a little more help at home doing the things I can't do.??