You can access the ACOG bulletins through Obstetrics & Gynecology. After linking to the journal site, using the search bar on the page, type in the words: practice bulletin . Keep the "All Issues" setting and then click the Search button.
OB/GYN articles in PubMed:
Click on "Website", below, for the complete PubMed search of "Obstetrics"[Majr] OR "Gynecology"[Majr])(Humans, English) from the last year.