Yes I get this, but I have the opposite trouble, short cycles, so I start getting dragging period pain and a bloated abdomen at day 14, I'm currently up to day 20 and clinging on hoping I don't bleed.
I was so worried I paid for a private transvaginal scan to put my mind at rest, all they found was a thicker endometrium at day 17 (10mm), which she said was indicative of an imminent period, but I had no cysts, polyps or anything else to worry about. btw scan was £90, and because I can drive, I just took the next day appointment and drove an hour to the clinic offering it (I'm midlands) - they have several clinics offering various days of the week.
My issue is I think too much estrogen relative to progesterone, hence the short cycles.