Cycles after the pill

Gina
I've been off the pill for 10 months now. My monthly cycles have decreased from 37 days to 25 days. It is now going to be 24 days this month, according to my ovulation day. My period length has decreased from 6 days to less than 2 days last month. Is this normal? Will this decrease my chances to get pregnant? I feel like there won't be enough blood built up in my uterus to sustain a pregnancy. Also, how much shorter can my cycles get? Any stories or experiences are appreciated!