Periods becoming irregular

Hello everyone, 

i have posted on Colposcopy page last year and found others were a great help so I’d try on this page regarding my periods.  They used to be regular (28day cycle) but I’m finding they are becoming random.  Last year it was about a 70 day cycle, then didn’t really pay much attention as I had an abnormal smear and Lletz.  this month so far I’m 15 days late, everday I get the stomach ache as if the period is arriving but it hasn’t.  I been told I have a fibroid too.  Now my question is could this just the start of the menopause, I’m 47 this year.