My mum had no issues falling with me or my sister (my sister died of spina bifida at 7 weeks old) but it took her over 12 months to fall with my brother.

I know that I was born at 37 weeks and my brother was born at 42 weeks. My sister was premmie, but I can't remember how many weeks along mum was when she had her.

Sister was born via c-section, I was a forceps baby and brother was natural.