So, I had the mirena inserted almost two and a half years ago, After my son was born. This morning I woke up to a wet bra and noticed what looked like breastmilk leaking out so I squeezed some out, sure enough breastmilk. No discoloration. Just looked like colostrum. So I immediately went and bought a pregnancy test, it came up negative. I was reading a long thread of people saying mirena can cause a false negative?