I am 43 got tubes tied in 1995 after my daughter was born. For last 3 yrs my periods have been wacky. But for a few months now they have been every 19 to 21 days I missed a month and then had one. I ended last one July 16th was suppose to start the 8th of aug and so far nothing.. Is this part of perimenopause

We'll need more info in order to guess at a diagnosis, but no diagnosis will be given. You won't find a valid diagnosis anywhere online, for that you'd need to see a doctor. We can only give you a guess about your specific post.

Good luck. :)

It can be due to peri menopause, but as Alty said, check with your doctor as there are other possible reasons for irregular bleeding that should be ruled out.