Missed period but not pregnant

[Cherryhd]

Just after some advice really. My cycle is 25-27 days, never late but v v heavy. However this month I'm now at 35 days and no sign, not even usual achy boobs.Taken two preg tests and negative, last one yesterday. I'm have a dull ache on my lower right side of abdomen on and off for a few weeks, keep thinking its period pains but nothing. I'm 41 and on no contraception as it doesn't agree with me. Is this worth going to drs or will they just tell me to bugger off until I've missed another month or two?

Have u been stressed or anxious

Or been eating lots less or lots more

Perimenopause?

Could be a cyst on the ovary. If the dull ache persists or gets worse, and still no period, see GP.

Did things go back to normal Cherry? I'm in very similar situation, period between 26 to 28 days is now 4 days late. Negative pg test. The dull ache reminds me of when I had a large ovarian cyst but this, and ovary, are now gone and still occasional pain there.