"Some clients incorrectly believe that injectables prevent pregnancies by causing an abortion."
"Research shows that neither progestin-only nor monthly injectables will disrupt an existing pregnancy. Both types of injectables prevent pregnancy primarily by preventing ovulation. Injectables also thicken the cervical mucus which inhibits sperm penetration. These changes make fertilization extremely unlikely to occur. Injectables also make the endometrium unfavorable for implantation if fertilization does occur."
that conception is to be equated with fertilisation;
that a woman is pregnant from fertilisation/conception onwards;
and that miscarriage, being synonymous with abortion, refers to loss of the preimplantation embryo, potentially caused by the morning after pill.