I'm 3.5 months in progesterone. Did it make my boobs grow? Let's look at some data!
So. This data has problems, of course. I've added disclaimers at the bottom. This isn't science, this is personal curiosity.
But anyways.
My HRT progress has been in three distinct stages:
1, sublingual pills, with on and off spiro. Suppressed T, E struggling to get up. Month 0-7
2, Injections, no progesterone. E goes to appropriate levels very quickly and fluctuates within cis female ranges. Month 7-13.
3, all that plus progesterone. Month 13-16 (current).
For the purposes of simplicity, lets look at breast growth only.
Let's take a look at some of those sublingual numbers:
All in freedom units, bc I hate myself.
I mean hey, not bad! There was absolutely some growth and breast bud formation as well. I pretty clearly got to tanner 2 here. But there's an obvious, clear plateau in growth. We can see it graphically as well:
Ignore the blue line, that's different data (waist:hip)
So what broke the plateau? Well.
The blue measurements are taken when I'm on injections and good levels, and the green one is as well (it was my progesterone start date). Apologies for the data jumping around, there were gaps. Also worth noting that I was ~20 pounds lighter on that final measurement.
So after plateauing with sublingual, my E around 100, the only thing that broke through that barrier was dropping spiro, switching to injections, and keeping my E at 200-400.
It is at this point I added progesterone (data in green).
holy FUCK
I genuinely would not have believed it myself if I didn't have pictures, as well as measuring myself now, and also y'know. Lived all of this.
Lets see that graph, shall we?
You can so clearly see the three stages here. The sublingual plateau, the injection bump upwards, and the progesterone fucking moon rocket. The gap in data is when I was backpacking- on injections, no prog. I think the drop in my W:H is also because of the weight I was losing.
Also yes, linear regression is kinda stupid here. I was just curious.
Anyways. I think I might be plateauing again, just based on how my breasts have felt a little less sensitive recently, which is also what happened on my sublingual plateau. But its absolutely wild to see what progesterone (probably) did in such a short time.
So in conclusion:
Yes. Absolutely. And so did injections, and proper levels.
When I encourage people to take an active role in their transition, this is what I mean. Keep track of your levels. If you're plateauing, think about what might be happening. Make sure to coordinate closely with your doctor. Amazing things can happen because of it.
Disclaimers and admissions of data sloppiness below:
