Has anyone had this experience where interacting with a specific male induces menstruation? I can't seem to find any information on this phenomenon:

I have a friend who lives in another city, we're travel-buddies and we travel together every few months. We've been doing so for three years, and in the last year I realized that every time we met up to travel, I'd get my period the first night of the trip.
At first I thought this was just bad luck/ planning on my part, but the last two times I kept track, and I definitely started my period more than a week early in each case, to coincide with the first night I spent with this boy.
We're not sexually involved but I have been infatuated with him forever, and I'm wondering if there's some kind of pheromone-driven effect going on here.

Has anyone here experienced anything similar?