Nonsense. There are thousands of older teenagers who share family homes with new borns and they don’t suffer life changing damage to their prospects.
How would you know unless you are close friends with them all?
That doesn't mean the DD is right to expect her sister to put up with a newborn.
There are a few posters coming along here with their anecdotes of their friends or family who had a baby at 16 and are now (almost) running the country.
Sadly, this is not how it works for most unmarried mums who have not completed their education.
Many end up in low-wage jobs ( shops, cafes, care homes) with no prospects and often get involved with other unsuitable boys/ men, having sex, getting pregnant, hoping that a new relationship will provide them with a home and security.
There are far more of these women than those who went on to have high flying careers, balancing a baby on their hips at the same time.
It's VERY easy to have sex, to get pregnant, and no contraception is 100%.
It's a hell of a lot harder to raise a child when you are 18 with no qualifications, no income, no home of your own.
I don't want to assume, but I'd question the maturity of the daughter here as she seems unwilling to engage in level of responsibility this baby would entail.
I also wonder how she got pregnant on the Pill and if her illness meant the Pill wasn't working, if she forgot to take it, or whatever.
@VerbenaGirl If your DD was ill so she had to leave school, how can she now support a child of her own? Her illness must have been pretty severe to stop her education.