Apologies in advance for this long rant but I really need to vent about this.

I'm 27 and my sister is 32. My sister has always talked about having kids. ALWAYS. When I told her I was pregnant, her response was "I wanted to be the first one" and a half assed congrats.

For my entire pregnancy she has guilt tripped me and been selfishly upset I was pregnant instead of her. I was trying for a long time with my SO before I got pregnant and she isn't even trying with her husband. It was making me so irritated listening to her complain when she isn't doing anything about it. She literally would look like she was going to cry all the time when people talked about my pregnancy rather than being happy for me.

Yesterday, my sister called me hysterically crying saying that she just found out she's pregnant. Annnddd after alllll the bs she has pulled she is now saying she doesn't want to be pregnant, doesn't even like kids, never wanted a kid, doesn't have room in her 2 bedroom house, doesn't make enough $ when she makes more than me, etc...She wasn't trying and is making up a million excuses as to why this is not the right time for her rather than being excited.

I've told her how happy I am for her, can't wait for our little ones to grow up together and to focus on all the positive things but she refuses to be happy about it.

Yesterday she told me that she is going to wait until after I deliver in a few weeks to tell our family so it doesn't take away from my experience since I'm due in only 3 1/2 weeks.

Today she told me that she is going to tell our family this week. She is only 4 weeks pregnant. At first I didn't care but it is seriously making me feel like she is trying to make my pregnancy about her again. It's like she wants everyone to pity her or focus on her and it's getting really old.

I'm just tired of the pessimistic attitude and selfishness. Maybe I'm being too harsh but I feel like I'm going to snap on her soon.

Am I wrong for being upset? How would you feel? Any suggestions would really be appreciated before I can't contain my frustration anymore and lose it on her.