OP, I think posters are being very harsh.
I can certainly see your concerns.
Some people are happy to be the higher earner however, not everyone is.
Some people think it's ok that they are in the high pressured job whilst their partner stays in their lower paying position because that's what they are happier doing.
This often works for women with families, as the women might be the primary caregiver and organiser in the home.
OP's partner is not particularly ambitious, doesn't contribute half and may not increase his earnings into the future.
He also would like a family, for which he will not pay half.
So going forward OP is a little 🤔 about him not paying half and not creating opportunities where he might be able.
She's also thinking 🤔about funding having a child, maternity leave, funding the unexpected stuff that can happen in life, like a child with challenges, having to go straight back to work.
I think the OP sounds like a woman with her head screwed on bloody straight.
She's thinking ahead and trying to imagine how things might play out.
Why? Because if she's the main earner, whom it's all left to, to figure out, she'll be the one whom will have to fix things if it goes tits up.
Fail to prepare, prepare to fail is a great life saying when it comes to finances.
I would have zero interest in being with someone who was prepared to leave it to me to be chief financial provider, chief organiser, child producer, and general fixer in every situation.
Whilst they languished in a job that does provide even half our required income.
OP, continue to think long and hard.
I definitely think a good hard look at your your finances, 50/50 contributions - and how that would look is a start.
Do not even contemplate having a child together without being brutally honest with yourself and your husband.
Women in my experience, usually carry the organising load in the family.
I'd be damned before I would do that and the financial load.
It's a recipe for major dissatisfaction IME.
💐