On a GLP-1, your weight trend is often a slow, steady line. Your cycle adds a wave on top of it. This is how to see both without letting the wave scare you.
Step 1: weigh the same way every time
The scale is noisy before your cycle even enters the picture:
- Same time of day, ideally in the morning after using the bathroom
- Same scale, on a hard floor
- Similar clothes, or none
Step 2: tag the phase
Next to each weigh-in, note where you are:
- Period: the days you bleed
- Ovulation: around the middle of the cycle, if you track it
- PMS: the few days before your period
- Other days: everything else
You do not need to be precise to the day. Even “period started today” is enough to line things up later.
Step 3: compare like with like
Instead of comparing today with last week, compare today’s premenstrual weigh-in with last month’s premenstrual weigh-in. Same phase, same water, a fair comparison.
Step 4: look at the trend
A weekly average is the simplest trend. A better one: for each weigh-in, look at the straight trend line through your weigh-ins from two weeks before to two weeks after. That window covers a whole cycle, so the cycle mostly cancels out and only your underlying trend is left.
Then, for each phase, average how far your weigh-ins sit above or below that line. After a few cycles you get something like: “PMS days: about a pound above my trend. Period: a little above. Ovulation: about on it.” Those numbers are yours, not an average from a study, and they are the ones that help.
What to do with the result
- Expect the bump. When you know your PMS days sit above your trend, a jump before your period stops being alarming.
- Do not react to it. A premenstrual bump is not a reason to eat less, skip meals or change anything about your treatment.
- Share it if it helps. A clear picture of your trend is useful at your follow-up appointments.
Doing it without a spreadsheet
You can do all of this on paper. Embera does the math for you: tag a weigh-in with Period, Ovulation or PMS, and the cycle view shows how far each phase sits from your trend, from your own weigh-ins, once you have at least three in a phase. Cycle tracking is off by default and part of Embera Pro.
Sources
- White CP, et al. “Fluid retention over the menstrual cycle: 1-year data from the prospective ovulation cohort.” Obstetrics and Gynecology International, 2011.