@Georgyporky
Posters stating that all women HAD to give up work are wrong - unless they mean outside the U.K.
Maybe certain employers forced women to give up work, but none of my contemporaries from that era had to do so.
Maternity leave was available , maximum 18 weeks on half-pay & back to work when baby was 6 weeks old.
I didn't even get that in 1992 because I hadn't been there long enough. They graciously said that they couldn't sack me because I was pregnant, but that my work would be absorbed by the remaining staff and I was therefore redundant with a month's notice.
When I did go back to work after DD was born, I had to keep her existence a secret because nobody wanted to employ a young unmarried Mum - the contract that was terminated at the end of the three month's probation where I was doing fine, but 24 hours after somebody spotted me with DD at the weekend and I was asked 'do you have a kid?' comes to mind in 1997 - and in one place, the boss disapproved of it so much that although he would take women back after having a baby, he would only do it on a part time basis because whilst he 'understood that not all men are able or willing to fulfil their responsibilities to the family', he wasn't 'prepared for it to be at the expense of the children involved'. If somebody said she needed full time hours, he would provide glowing references for her, but his company never 'needed' somebody to return fulltime. He never knew I had a child.
Temping agencies were also a nightmare. If they knew you had a child, they didn't put you forward for jobs, as they didn't want clients pissed off by somebody having to stay off work to deal with a sick child, wanting time off during the school holidays or having more babies before they could get the permanent hire payment/earned the maximum amount in overinflated hourly rates.
2007 was the first time I didn't feel that having children was a problem for an employer and that was the NHS. As long as I didn't expect time off in the school holidays, that was being selfish and entitled when women without children didn't have that 'excuse'.
I do hope you apologise to your relative for not believing her, OP. She was absolutely telling the truth - and whilst very poor or wealthier women may have been able to work, the ones in the middle would have been prevented by a combination of employer rules and social pressure upon both her and her husband.