Mounjaro and periods

[MamaorBruh]

I'm on my 3rd "course" of Mounjaro - I started this batch of injections 2 weeks ago and my period has turned up 8 days late! (Definitely not a pregnancy risk)
The first course I did last year, periods carried on as normal, and so did the one earlier this year.
So unsure why, it is suddenly affecting it.
Can't think of any other reason it could be but I suppose it's not necessarily Mounjaro - just all seems to link in.
Anyone else?!

"course" or "batch" isn’t very informative, but there have been lots of posts from people saying Mounjaro has affected their periods so it’s not too unusual, even though it’s not an officially listed side effect.

Regardless of Mounjaro, if your body is under stress from a sudden drop in calories, or if you’ve lost significant weight, since estrogen is stored in fat, those alone can disrupt cycles.

Sorry, should have been more clear:
I started it last year for 3 months, had a break of 2 months then have done another 2 months and stopped due to finances for 2 months again and now re-started on my 3rd "course" if that makes sense?
None of the first 2 times, dis my periods chang but this "course" it has.
I also haven't lost any weight other than 1lb in 2 weeks so don't think it's that (it's definitely nowhere near as effective when re-starting it as noticed that last time)

How old are you op?

41

Could be perimenopause