Wow! such a precious feeling it would be. Your story has filled my eyes with tears. You and your sister have gone through really hard times. Every lady wants to have her own children. Well, no one can fight with luck. One should be strong to face the ups and downs of life. Infertility rate has raised to the alarming level in the recent few years. Even every sixth lady is facing such issues. Well, surrogacy treatment has changed everything. However, it’s really expensive for some states. As you are carrying her child, it’s such a great decision. I must say you’d consult some good clinic before going for it. A specialist can suggest you the best. I wish you and your sister better health. Sending baby dust!