Correct. ABOG has in the bulletin the following:
"Candidates may NOT request a specific month for their examination unless there is a serious reason that is beyond the control of the candidate such as military deployment, medical issue, or a pregnancy complication. Any request must be accompanied by documentation. Such requests must be received in the ABOG office no later than May 21, 2021. ABOG reserves the right to deny any such request."
Note that pregnancy itself does not seem to count. (Oh the irony).