So if you believe that Plan B and birth control pills cause abortions... (they don't, but I'll play along and pretend they do to get the conversation to place I wanted to move toward...)
Then you cool with public funding to get people condoms, non-hormonal IUDs, and contraceptive foams whenever they need it even if they don't have a dime to their name? Or maybe some public funding for people who do have an accidental pregnancy so that the prospect of parenthood isn't so intimidating and financially unfeasible?
Bearing in mind, any answer resembling "well, people shouldn't have sex if they can't afford..." or "well, I shouldn't have to pay for..." is tantamount to saying "I'm willing to do whatever it takes to protect the lives of as many children as possible, as long as it doesn't involve me paying an extra $8 per paycheck"
Many times, when people claim their number #1 objective is protecting the lives of as many children as possible, their proposed solutions tend to be less of the "something that would actually help the children (IE: money)" and more of the "punish the mother for making a decision that I don't think she should've made"
They'll donate hundreds of dollars a year to PACs and organizations that seek to outlaw abortions, but they won't actually pony up a dime to help contribute to funds that, if available, could be the thing that changes a woman's mind and makes her think "with that additional help, maybe I can do this even though my job only pays $14/hour"
Data doesn't lie. Finland, Spain, and Germany (and several other countries for that matter) all offer fairly generous benefits to a low income person if they opt to become a parent instead of having an abortion, and their abortion rates range from 1/4 to 1/2 of what ours are.
Translated: Being willing to contribute to a few extra bucks a paycheck toward those public funds would translate to eliminating 500,000-700,000 abortions per year in the US and those would be lives that would be saved. You willing to sign on for that?