Can levo affect menstrual cycle more than once

[nettiboo1982]

Ok so I think I've been on levo for three nearly four months now and my first period after starting meds was late leading to a 47 day cycle then it went back to a more normal for me 32- 35 day cycle but for some reason I'm now 12 days late making it so far a 50 day cycle. I've done three preg test last wkend all neg will test again tomorrow but I'm sure its not that. I'm planning too see doctor Monday but in mean time could it be levo?

[Aurealis]

I suppose it could be Levo as things settle down, I think anything can happen as hormones settle and you only really find out in time. How old are you - might it be start of menopause? Don't want to worry you, it can take many years.