 She provided advice to Bourn Hall Clinic, an infertility clinic, about the wording of consent contracts for sperm and egg donors.When the Family Planning Association was threatened with legal action, they consulted Puxon about whether the prescription of the morning-after pill was equivalent to providing an abortion; Puxon advised that if the pill was used within 72 hours, its use did not amount to abortion by the meaning of the law because the ovum had not yet implanted in the wall of the uterus.Puxon was elected a Fellow of the Royal College of Obstetricians and Gynaecologists in 1979 and was appointed as Queen's Counsel in 1982.