I have had a mirena coil for 15 years, and the second one is coming to an end. I'm due a replacement next week. My doctor has recently prescribed estrogen gel for meno symptoms (mainly hot flashes), and I took the first dose last night. Today, I have bad period like cramps (after 15 years i'd forgotten how uncomfortable they are!) Could one dose of estrogen do this? I know my coil wont have much progesterone left, as I was using for birth control which is 8 years, rather than HRT which is 5, but this seems a bit extreme? I don't know whether to continue or wait until the new coil is in. HAs anyone else had this? Thank you :)