So, last September, I had my baby boy. The pregnancy went well, little to no complications. I got on the Mirena IUD in October, and got it removed 8 months after, in June. My fiance and I went a period of time trying to avoid getting pregnant, but more recently, we have been trying. While on the Mirena, I had completely lost my period. However, it took three months for my period to return - it started on the 30th of September, ended the 9th of October, and was HEAVY. The 17th through the 21st, my SO and I had unprotected intercourse, and I had light spotting on the 21st. The next day, no blood and no intercourse. The 23rd, 25th, and 26th - more unprotected intercourse. I was supposed to start my period again, on the 28th, but now its the 2nd and I haven't had a period. Just light spotting yesterday, on the first. Both times I spotted, they were so light, I might not have noticed, had I not been looking for it. I took a pregnancy test on the 30th, but it came back negative. Could I be pregnant? Or is this all just part of a hormone imbalance due to being on birth control?