Tired of him

I'm 38wks pregnant as of tomorrow and I've been so overwhelmed with mixed emotions. We found out I was pregnant in December and by then I was already 11wks pregnant. He's always been such a great and loving guy but it's like he totally forgets about me and my needs too. First off, let me start by explaining his family. We both told his parents together that I was pregnant and they were upset because we weren't married. But I think they got over it within a few months. But it always felt odd around them afterwards now because his mom wouldn't let us tell his siblings that I was pregnant. I was so hurt by this. My boyfriend is Mexican and I don't speak Spanish all that well and both of his parents barely speak English so I rely on my boyfriend to translate. Well I told my boyfriend that I felt hurt that they wanted to keep our baby a secret and he said he 'understood' but never said anything. I try to look past it because maybe she had good intentions on doing so? Now fast forward to March when we threw a party for my sisters birthday. Since they live close, my mom had made me invite them over. Well when I see his siblings, the youngest boy ends up punching my in the stomach very hard. What upset me the most about that was my boyfriend AND his mom saw it and didn't say anything to him. I walked back to the party and sat it my room trying not to cry. The party continues and later on I find his siblings in my room, touching all of my babies stuff. I get angry and start being a bitch towards my boyfriend because he didn't seem to care about anything they were doing. So about 45 mins pass and the food is ready to eat. There were a lot of people over and no room for me to sit so I end up eating in my room. I already told my boyfriend I don't want anyone else eating in there besides me and him. Next thing I know, his freaking siblings are eating all over my floor and bed and so was his mom. I was livid. Now let me skip to my baby shower that I threw. I invited all the people I wanted to be there. Which included my family, his family, and a few friends. I felt so happy (still a bit mad because even at this point, being 32wks pregnant his mom wanted to keep my preg a secret; stupid right?) but as the party went on, I noticed some people came over. People who I didn't even know! They came over and started eating the food my family and I made!!! I was beyond pissed. His fucking parents invited them over and didn't even bother to say it was my baby shower. All they knew was to come over and eat. It's almost towards the end of the baby shower and some lady with her husband and 2 kids show up. And my boyfriends parents sit down with them and start giving them our food and giving them left overs to take home. I was so fucking pissed because I wanted some left over food too. But no, my boyfriends mom thought it'd be okay for her to have the rest of the fucking food we made and to give some away to people. And funny thing about it is that that lady was over to celebrate HER FUCKING BIRTHDAY. So I'm pretty sure you can tell I was very upset by the end of it. Now that isn't the only thing that gets me so upset now a days. Whenever I need him to help me, he's know where to be found but when his parents need him, he's there within a blink of an eye. A few days ago I could barely get up and I felt so sick and I asked if he could go get my some Tylenol because I had an ear infection. You know what he says to me? "Okay." And he actually ends up going to sleep. But within 20 mins his mom calls asking for a favor and he's gone within the end of the phone call. I'm literally so done and upset with him. Im tired of fucking crying and feeling so alone. I've talked to him so many times but it's the same thing over and over. He says he understands but he doesn't. He doesn't understand how it feels so always come second. I'm at my breaking point.