What do you mean “eventually”? Curbing access to contraception has been a declared part of Republican policy since at least 2008, when the Department of Health and Human Services under GW Bush defined abortion as “any of the various procedures — including the prescription and administration of any drug or the performance of any procedure or any other action — that results in the termination of the life of a human being in utero between conception and natural birth, whether before or after implantation” (italics mine).
As I wrote at the time: “ That definition is broad enough to include not just actual abortions, or emergency contraception, but ordinary hormonal contraception, including the pill, and effective long-term birth control solutions like IUDs (which work by, crucially, preventing implantation of a fertilized egg. The “whether before or after implantation” clause is evil genius). Ahem. So that’s pretty much every form of birth control apart from condoms, abstinence and crossing-yer-fingers-and-praying-real-hard chucked out the window.”
This is another battle in a long, long war.