group menstruation while on HBC?

[jenn-possible.livejournal.com]

I have searched the internet all over for this, but I can't find anything about it.

I have been on the pill for about six years and have lived with female roommates since September. For the first few months, my period was out of wack from moving to grad school, and since I've come back from winter break, I've been having my roommates' period and mine!

Basically, I have breakthrough bleeding when my roommates are menstruating (all at the same time, of course) and then my own period during my pill's "off week." This happened a few years ago when I was an undergraduate, and I actually quit the pill for a few months to sync up with my roommates' periods. When I went to the Women's Health Center last week, the nurses were amazed that anyone could "group menstruate" while on the pill. The nurse practitioner said it was just annoying breakthrough bleeding and put me on a slightly higher dose pill.

Basically, I just want to know if anyone else has experienced this. I know most women conform to the dominant woman's cycle, but I've never heard this happening with someone on HBC. Am I just incredibly sensitive to other women's phermones?

Comments

[ilikerivers.livejournal.com]

My periods synced up with my girlfriends when both of us weren't using HBC. Now she is and it's messed us both up I think. I ovulated twice and my period is really late and she is experiencing ovulation-like symptoms even though she shouldn't be. I have cramps when she has her period and vice-versa even though mine didn't come.

Synchronization is really weird!

[brague.livejournal.com]

This happened to me, too. My roommate started using birth control before me and it moved my period around until I started using birth control, too.