I use the Merina for progesterone along with Estrogen patches. I have had the Merina twice, this is my third. I was period free mostly with the Merina and minimum PMT. It was taken out in August and could not be refitted, so I had to have a forced three month break.. but I was super keen to have it back because progesterone along with Estrogen seems to keep me mostly level whilst Peri. Each time before first and second it settled in very quickly with no awful sides. After the break it was inserted successfully early November. It's been ok, I have had on and off bleeding, mostly on, there are clots and it's mostly brown. Also some lower abdomen cramps. I even seem to be having mild regular period symptoms along with bleeds. Over the past three days have sharp prolonged pain in the left side of womb, feels like the ovaries. And today towards the middle of my womb more sharp prolonged pains. These incidents both coincided with doing weights in the gym and went on for 4-5 hours. Do you think this will settle down, I had very little pain after insertion. What could this be. Thank you.