Roe v. Wade, 410 U.S. 113, is a landmark decision issued in 1973 by the United States Supreme Court on the issue of the constitutionality of laws that criminalized or restricted access to abortions.Wikipedia
Full case name:Jane Roe, et al. v. Henry Wade, District Attorney of Dallas County
Citations:410 U.S. 113 (more) 93 S. Ct. 705, 35 L. Ed. 2d 147, 1973 U.S. LEXIS 159
Wikipedia 1st paragraph. Go there to read the rest of the info. Your education is a little bit deficient. It is "law" in the sense that the Supreme Court has ruled on a constitutional matter.
Roe v. Wade, 410 U.S. 113 (1973),[1] was a landmark decision of the U.S. Supreme Court in which the Court ruled that the Due Process Clause of the Fourteenth Amendment to the U.S. Constitution provides a fundamental "right to privacy" that protects a pregnant woman's liberty to choose whether or not to have an abortion. However, it ruled that this right is not absolute, and must be balanced against the government's interests in protecting women's health and protecting prenatal life.[2][3] The Court resolved this balancing test by tying state regulation of abortion to the three trimesters of pregnancy: the Court ruled that during the first trimester, governments could not prohibit abortions at all; during the second trimester, governments could require reasonable health regulations; during the third trimester, abortions could be prohibited entirely so long as the laws contained exceptions for cases when they were necessary to save the life or health of the mother.[4] Because the Court classified the right to choose to have an abortion as "fundamental", the decision required courts to evaluate challenged abortion laws under the "strict scrutiny" standard, the highest level of judicial review in the United States……
You need to understand some basic civics IMO.
https://en.wikipedia.org/wiki/Roe_v._Wade