I hate being that friend

I'm always the friend that's there for my friends when they need a shoulder to cry on or just vent too. But when I really need a friend no one is there not even my so called bestfriend. I understand shes been through alot this last month. In March her cousin was found murdered so that was really hard on her. I was that friend that answered her calls at all times during the night and day. I've never experienced anything like this but I did my best to comfort her while she was with family 10 hours away trying to get closure. She kept telling me shes so sorry she has to miss my baby shower and I told her it's fine I understand I wouldn't expect her to be there with what's going on. So 2 days before my baby shower she just stops calling texting me and it worried me so I would send text letting her know I'm here for her and to call or text if she needs anything. So 3 weeks goes by I hear nothing from her i only know shes okay because she's posting stuff on Facebook and selfies on snapchat. Then I get a call at 1 in the morning it's her crying because she found her boyfriend is talking to other girls inappropriate. So being the friend that I am I listen to her I consoled her I agree with her. I completely ignore the fact that she has been ignoring me for the past 3 weeks. 4 am rolls by and I tell her I'm really sorry but I need to get some sleep and she agreed she did too. Phone call ends I think we are back to our old friendship I'm happy. I get up at 9 send her a text to see how shes doing and she just leaves it on read. Okay maybe shes busy I send a text later that night telling her I miss her and our conversation. Nothing... so I decided to give it a few days and shes still hasn't replied to any text. Then the other day was the anniversary of finding out I was pregnant a year ago. Unfortunately that ended in a miscarriage at 10 weeks. So I was really upset I was crying and I really just wanted my best friend to talk to. I send a text 3 hours and nothing so i call her and she sends me to voicemail. I eventually just went and took a bath and cried it out by myself reminding myself shes going through alot and I should give her some space. I still haven't gotten any text or calls. I dont know what to do or if my hormones are making me feel mad and hurt but am I wrong for wanting the same in return from her. We have been best friends since high school we tell each other everything we used to talk every day. Should I just leave her alone? Wait until she needs someone to cry too should I confront her. I'm not trying to be insensitive to her because she lost a close family member.