I feel like no one is there for me...

Ugh, I feel like no one is there for me right now, besides hubby. I'm 9 months pregnant and my 3 main friends seem to be MIA. One has 3 kids and just seems too busy to be around. The other has a new boyfriend and seems too wrapped up with him and the other has been checked out for over a year. I don't even feel like I have my mom. Our relationship has been strained for years, but it's kind of reaching a peak right now. I try to be understanding with my friends, I know they have their own busy lives and their own problems, but I can't stand the inconsistency. The last time I hung out with my one friend she asked if I was okay and I was honest with her. She apologized and said she felt bad and that she knows she's been out of touch and hasn't been a great friend. She said she would be in touch to grab lunch last Wednesday and then never got in touch. I'm just tired of being so disappointed. My step sister didn't even come to my baby shower because she had some big argument with her mom and then my stepmom was in a pissy mood the whole time. When she left the shower she said she had to get going so she could 'go do life.' Sorry my baby shower was an inconvenience to you. I try to keep her in the loop with ultrasound pictures and I just get a thumbs up emoji. She treats me so different from her own daughter and I've known her since I was 4 or 5. I'm worried she is going to treat our daughter different than her grandson from my step sister. I don't have that concern with my dad, he's been great and is determined not to do that as his parents did it to me and my brother's growing up. Just sick of people's shit and feel like I have pretty much no one to turn to. My husband is great, but sometimes you just want a best friend.