What are three laws reguarding abortion in the U.S?

Answer 1

There are hundreds of laws regarding abortion, a few federal but mostly by state.

The standard for any law (per the Supreme Court in 1992) is that the law cannot impose an "undue burden" on the right of the woman to chose that medical procedure.

Within those limits, individual states have passed many laws. Most remain valid, some were declared invalid because they imposed too much of a burden.

Among those which would be valid -- parental notification for minors, a short (24 to 48 hour) waiting period, the requirement that the woman receive medical literature explaining her options.

Among those which have been declared invalid -- requirement for spousal notification or consent.

Answer 2

Must be done by a doctor.
Must be done by 3 months of gestation.
Must be allowed to be done after the 3 months gestation if the mothers health or life is in jeopardy.