"Trans Period Pride" — an annual gathering Mass NOW and MTPC have built around the concept of menstrual equity for trans-identifying people — has run in Boston for three years. The 2026 edition was billed as the largest yet.

"This year's event drew our largest attendance to date, reflecting just how much our community needs a space like this — one that centers transmasculine, non-binary, and intersex menstruators and takes their experiences seriously," the post continued.

A photo published with the announcement shows roughly 30 attendees gathered in front of a screen displaying the event branding.

The Mayor's Office of LGBTQIA2S+ Advancement, an office within the Wu administration, was the primary government supporter of the event for the third year running. Per the official event flyer, Mass NOW and MTPC ran the program "with support from" Wu's LGBTQIA2S+ office, alongside the Boston Alliance of LGBTQ+ Youth (BAGLY).

The event flyer also promised "catered dinner and free period underwear provided to all attendees."

National conservative outlets — Fox News, the Washington Times, the New York Post, BizPac Review, Townhall, and The Post Millennial — covered the lead-up to the event through late May and early June. Their coverage focused on the "trans menstruators" framing, the use of taxpayer-supported municipal infrastructure (the Boston Public Library), and the planned distribution of free period underwear.

Per Mass NOW's IG post this week, the relocated, security-protected event went forward on June 16 — one day earlier than the originally scheduled date — and drew "our largest attendance to date." The screen behind the attendees in the official event photo posed the rhetorical question: "What does it mean to be a TRANS MENSTRUATOR?"

"We left this year's event reminded that liberation from menstrual shame and period poverty is not something we can do alone; it is a collective movement," the post said.

The post closed by thanking "our partners, our co-sponsors, and every single person who showed up." Mass NOW did not name specific elected officials or co-sponsors in this week's announcement.

The "trans menstruator" framing remains a flashpoint in Massachusetts public-health policy. Supporters argue that menstrual equity programs need gender-neutral language to serve all people who menstruate. Critics argue that replacing words like "women" with "menstruators" in legislation and advocacy materials erases sex-based categories.

For three years running, the Mayor's Office of LGBTQIA2S+ Advancement has been the most prominent municipal supporter of the framing in Boston. By Mass NOW's own count, the June 16 edition was the largest yet.