I'm tired of my fiancée little sister. We are pregnant at the same time. I'm having my baby in February and she's…

I'm tired of my fiancée little sister. We are pregnant at the same time. I'm having my baby in February and she's suppose to have her baby in April but she can't sit still enough to listen to the doctors to even make it to April so maybe as early as March for her. I have a high risk doctor for everything I had to go through with my pregnancy. She sees the same high risk doctor and he told her to take it easy and to take the medicine he prescribed her and she doesn't take the medicine. We both see the same OBGYN and he tells her to take it easy but she doesn't listen. She constantly having contractions but she doesn't go to the hospital until she in tears. I don't bother saying anything to her because it just in one ear and out there. Everytime our OBGYN sees me alone he ask about what she's doing cause she doesn't tell him the truth so I tell him what's going on. She listen to her sister who is a cna I do believe and whatever she says goes so if the OBGYN tells her bedrest her sister comes along and tells her it's fine for her to walk the mall with her. I'm tired of it and I feel horrible for the baby cause I feel as if it's going through so much stress from her not listening to the point where I cry at night.