Hello, and I hope I can help you today. Pregnancy symptoms can vary widely between women, and worrying about conceiving and even thinking about pregnancy can make you notice your normal hormonal variations more acutely than someone who is not trying to become pregnant. Thicker clear discharge could indicate ovulation, loss of your mucous plug (which occurs after ovulation is complete) or the early phase of your menstrual cycle (pre-ovulation) which normally occurs about a week after your period has finished. The Mirena IUD does not inhibit ovulation, so even though the IUD was removed it is unknown when exactly you ovulated during that cycle. To even though you have the IUD removed and tried to conceive for four days following, there is no way to know at this point whether or not you are pregnant. Irregular vaginal bleeding is also common after the removal of the IUD. What I suggest that you do is wait until 2 to 3 weeks from the time you try to conceive and take a urine pregnancy test at that time. Modern urine pregnancy tests are sensitive enough to pick up pregnancy hormone after 23 weeks after conception. I hope I was able to adequately answer your question today, and I wish you the best of luck in conceiving. Best wishes, Dr. Brown