First realize the term Ivy League refers to a very specific set of 8 schools: Harvard, Princeton, Yale, Columbia, Penn, Cornell, Dartmouth, and Brown. These are all private schools, with the exception of Cornell which has both private and public components.
As you can see, after an abortion the hCG levels remain up for as long as 60 days. Following an abortion a positive pregnancy test may occur for as long as 60 days post abortion when the termination procedure was successful. The following two paragraphs come from the 19the edition of Contraceptive Technology.
Percentage of pregnant women that received a negative pregnancy test on this day Percentage of pregnant women that received a positive pregnancy test on this day Only shows pregnancy test result statistics on 6 days past ovulation and after.