Anyone know anything about child support?

[CAL]

I've only been getting $20 a week from my ex and that's only when she can scrape it up (I haven't taken her to court for support yet). Got her to bump it up a little cuz our daughter starts preschool in a week and it's gonna cost me twice what I pay for daycare now. My ex says she's gonna go back to $20/week when she gets into 1st grade because my expenses will go down

Anyone know how the courts figure out how much someone has to pay? Is there a bare minimum? $20 don't cover squat

Will they look at just her income? Will they add in her husbands? What if she says that all she can get is 10 hours/week at 7-11?

I can't afford to pay a lawyer a grand to go into court and only get me $40/week