Weight Loss and Changing Cycle

[zebbie356.livejournal.com]

Has anyone ever experienced a change in their cycle due to weight loss. This is the second month in a row that my period has come 3-4 days early (when it's usually very regular). The only change in my lifestyle that I've been making is trying to lose weight, but I'm not even doing that rapidly. I've lost almost 20 pounds since about October. I don't know what else might cause this change... Any ideas?

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