ADVICE NEEDED PLZ HELP--visitor visa

[abcd2001]

Hai all,
I'M a GC holder.I'm pregnant by 6 months ,now in india wanting to go back to US for delivery&unfortunately neither my parents or my in-laws are in good health to accompany me to US for my delivery.so,i thot to take my aunt{my father's sister} with me.But she has a pace-maker{for complete heart-block}&is 65 yrs old but in good health.my questions are:
1}how do i prove my relation with her?i mean what documents are needed to say that she's my father's sis?
2}do i need to specify her heart problem in any of the documents?
3}is the procedure &the documents same as for sponsoring parents or in-laws?
PLZ help me out with these queries as i'm in a fix.
thank you.

[PraetorianXI]

Hai all,
I'M a GC holder.I'm pregnant by 6 months ,now in india wanting to go back to US for delivery&unfortunately neither my parents or my in-laws are in good health to accompany me to US for my delivery.so,i thot to take my aunt{my father's sister} with me.But she has a pace-maker{for complete heart-block}&is 65 yrs old but in good health.my questions are:
1}how do i prove my relation with her?i mean what documents are needed to say that she's my father's sis?
2}do i need to specify her heart problem in any of the documents?
3}is the procedure &the documents same as for sponsoring parents or in-laws?
PLZ help me out with these queries as i'm in a fix.
thank you.

Please do not post the same question twice, specially not in the same sub-forum. Your question has already been answered in the other post.