Weight loss patterns

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Now I've stopped losing weekly and close to my goal I've noticed the last few months since xmas a pattern emerging.

Now I lose 2lbs when water comes off from monthly cycle then won't lost anything else until just before the next lot of water is due on like literally a day before and suddenly my weight will drop by another pound, before 4-6lbs goes on for a week (week before they start).. then when it comes off again I'm another 2lb lighter, then same will happen again for the rest of that month and following month.

Wondering if any others had a pattern with what times of the month they lose?