Is my period early because my sister started hers?!


Question: Is my period early because my sister started hers?
I'm 18 and I've started 11 days early and I'm usual like clockwork. I am staying at my sisters house for 2 weeks and she is having her period too. Did I start because she did? It seems kind of strange.

Answers:

Actually research suggests that female relatives or close friends living together often end up synchronising periods. However, this usually only happens if they've been living together for a long period of time, so while this may be it, it may just be a random thing. Periods can be so unpredictable at times eh? haha.

Psychology student



Yes it is possible. Sometimes if there is more than one female in a household their periods will start around the same time. Its a little weird but it happens in my house too.

http://thelittlepinkbook.webs.com/
Advice website for teen girls



Yes, that is possible. I have been late before, because my mother was starting menopause.




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