For me it was a horrendous upbringing that ensured I never wanted children, both my sisters became mothers and on a whole have done a great job, but for me no.
Luckily the man I went on to marry was already a father so I never had to deal with his "need" to be a father
I did beg to be sterilised but of course that was never "allowed" and then when I was being advised to have one in my 30's , it kind of threw me a curve ball. Up till then it was my decision, then suddenly that was being taken away. However those feelings only lasted a wee while.
When I hit menopause I got broody - hormones are a bastard at times. Again it was fleeting.
During menopause I did spend time reflecting and thought to myself Id have been a good mum and perhaps I should have gone ahead, but the truth is, it would have been a 5 minute wonder and Id have been as uncaring as my own mother is to me
Im a grandmother to our three grandchildren, one of whom I did bring up for his first 3 years, but Im so glad they arent mine, that I can just dip in and out. I love it when they are here, but dont cost them a thought when they arent