The OP needs a little history lesson.
This country was founded by thirteen separate colonies which all wanted to retain as much of their sovereignty as possible, while consolidating the government functions that could best be done on a consolidated basis. That list of consolidated functions is detailed in Article I, Section 8.
EVERYTHING ELSE, aside from that short list of consolidated functions, remains with the States. So if a matter is not mentioned in Article I, it is, by default, a matter for the individual states to decide. Family law, property law, crimes against people (murder, theft, assault, etc.) are all retained by the states.
Abortion ain't on the list.
This is not complicated.
If that makes you uncomfortable, petition your Congressman and your state Reps to propose and pass a Constitutional Amendment. But be aware, a super-majority will be required.