Nope, doesn't play a role whatsoever. EVERY pregnancy is different. Thats just a coincidence.
Yeah a study just done shows premature birth effects the following four pregnancies
Could. The way your mother carried and get mother carried are likely to influence the way you carry. However it's not a guarantee! My mom's longest labor (out of three) was about five hours. My sister's longest labor so far was just over seven hours. So I was really hoping for a short labor. Nope. I got the short side of average for a first time mom, just under ten hours, with almost three hours of pushing.
I only worry because at 28 weeks I started preterm labor. Contractions and I'm already dilated 1 cm. We stopped it with meds but now I'm 31 weeks getting closer to that 8 week mark. Just a scared ftm I guess