5th April 2026

One thing I haven’t mentioned yet — but absolutely need to — is how Mounjaro affected my menstrual cycle.

It wasn’t something I expected, but it ended up being one of the most noticeable changes for my body.
Before my miscarriage, my periods were predictable. They usually lasted around 3–4 days, nothing unusual, and I had a pretty normal cycle. And only now and again they fudged up due to the IVF medication!

After the miscarriage though, everything changed.
My periods suddenly became extremely long, lasting up to 14 days at a time. It was exhausting, frustrating, and honestly a bit of a nightmare to deal with month after month especially with my rheumatoid my body couldn’t cope with sanitary products. My body already felt like it had been through so much, and this was just another reminder that things weren’t quite right.
When I started taking Mounjaro, I wasn’t expecting it to have any impact on my cycle at all. My focus was mainly on improving my health and hopefully losing some weight.
But after a short time (2 months) on the medication, something surprising happened.
My periods instantly returned to normal.
Instead of the two-week long cycles I had been dealing with since my miscarriage, my body settled back into the 3–4 day pattern I’d always had before. It felt like my hormones and my body were finally finding their balance again.
For me, that change alone made a huge difference. After everything my body had gone through, having something return to “normal” again felt like a small but very meaningful win.

And even today a whole year after mounjaro my periods are still normal again 3-4 days tops!

It’s not something everyone talks about when discussing Mounjaro, but in my experience it was an unexpected benefit that helped my body feel like itself again. 💛