My 21 yearold sister REFUSES to talk to me?

Because I got pregnant before she did. I think its such a stupid reason. My pregnancy wasn't planned, which she claims it was...(She lives in New York; aka the other side of the country..(i live in California) AND she recently moved back to be with family.) Now shes living with us for a Little while, before she moves to a condo in the summer. Im due in June (June 16th). And I have enough stress with a few friends. Ive had a job since i was 14, and i had no plan to get pregnant, I just have a-lot of money saved. We went to a family meeting session in L.A earlier in the week, and she STILL will NOT talk to me, i wrote her a 4 page paper on how i didn't not plan my pregnancy, I also made her a little gift basket and everything. Im just about to give up on it, but I want her to be apart of her Nieces life. What else could/can I do?
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she is probably disappointed in you.. i don't think it's b/c you got pregnant first. i am the oldest of 7. and if my 16 year old sister got pregnant, i would be very disappointed in her... and it wouldn't matter where in the world i lived. she probably wanted more for you. and i was totally feeling you and not understanding what your sisters deal was... but than i saw your age. dude your a kid and that is exactly what her problem is. i do however respect the fact that you are taking responsibility... but in saying that how much can you take when you live at home and how much could you really have saved after only working 2 years.... and you live in the states where minimum wage is peanuts. im sorry darling but babies are very expensive. back to your sister, i can understand that you have reached out to her with the letter and basket... i say give her time. let her get over it on her own time. i dont know how close you are but it would be a hard thing for me to deal with. I guarantee you when that baby gets here, she will be involved and all this will be in the past. Babies are a wonderful thing no matter what the situation. good luck and take care of that baby.
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