SO neglecting first time Mom; blames her

Dear Reddit,I am a first time Mom. I live with my Significant Other (SO) and with long-term/short-term roommates who we rent to. My relationship with my SO is strained now that we have a six week old son. Our pregnancy was unplanned, and we got an apartment together as a response to it. I, the mother and primary caregiver, take care of my son almost 24/7 (night feedings/during the daytime), and I enjoy it. My SO works during the day and gets home around six pm. However, recently my SO has been going out for drinks with work associates and friends, even though I told him I am not okay with it, since I am so exhausted and need the help. He then says that I can have my sister over to help, to which I respond, our child is NOT her responsibility. I’ve been feeling like all the child rearing responsibilities have been relegated to me, and granted, my son does seem to prefer me, and I have a bad habit of nagging his father when he does something I don’t like. However, to mitigate this, I have asked him to instead help out with household duties- doing dishes, taking out garbage, cleaning up, etc. I’ve even asked him to give me a back massage. Even with those requests, he dilly dallies and spends most of his time on his computer, where he is researching stocks and investments. I feel like he is not helping me, and I am starting to feel completely alone in raising my son with one exception- our very generous roommate cooks for me and even watches my son when I ask (he is home during the day and studies at night). Granted this pregnancy was unplanned and my SO is only 25, but I feel like he just has not shown up to parenting our son. He even says that since our pregnancy was unplanned and that he intended on breaking up with me a week before we conceived, that he feels he does not have to romance me- i.e. be physically affectionate and caring towards me. I'm asking for basic care though, and his negligence towards me will eventually affect our son because if I am not being taken care of, then who can take care of our son? It makes me sad that his father is missing out on time with us, even though we live in the same household, but at the same time, it feeds my ego and makes me prideful that I can handle child-rearing without him and prompts me to rise to the occasion for my son, whom I love dearly and feel like I now live for. All in all, this makes me question the future of our household for my SO and I. Where are we headed as a household? Any advice? Maybe I just needed to vent? via /r/Parenting http://ift.tt/2nj3BxA