Hi Peroxidebladder - in answer to your question, yes I only have progesterone from the coil. I may need to add in Oestrogen cream if hot flushes strike but my oestrogen levels are still within normal range. Must say I'm grateful not to have any pills to remember to pop daily.
The other reason I had the coil fitted was for very heavy periods. Since they've stopped, I've had to visit the loo a lot less than before. Also, my 'leakage' problems have gone which is a huge relief. I found, a few days before my period was due, I'd occasionally leak a bit of urine, just walking which did nothing for my confidence. Bad enough with coughing, laughing and sneezing! I think my womb lining was so thick that it may have been pressing on other parts eg bladder. Anyway - problem gone!
On my sleepless nights, I'd go to the loo constantly. I assume that all my tossing and turning was irritating my bladder. Either that, or my over-active mind was so paranoid about needing the loo, that I was almost predicting yet another trip!