It went ok thanks to a practice thread on mumsnet.
I started by clearly saying that my concern was women’s rights and described my own personal journey. Praised parliament for the relatively recent coercive control/domestic violence legislation.
I brought up the “people with a cervix” cancer research piece and said my concern was about ordinary women and girls.
I stuck to saying we needed to uphold the equality act and said we’d made a mistake by not defining woman as the female sex earlier and keeping it separate from all the debates about gender.
He said he’d reflect.