I am 20 years old. I had a IUD (skyla) put in on September 12. I was doing fine with it until a few weeks ago. I had a period started the first and ended the 7. I then had sex on the 15. Since then my boobs have been tender. I have been feeling off like not myself. I have been light headed and dizzy from time to time. I have been nauseous and have thrown up. I've been having headaches more and they don't last very long. I have been a lot more tired then usual. I have been sensitive and cranky.My pants have been feeling a bit tight. I have been having cramps some on my sides and in my lower abdomen. Today I noticed small amounts of blood when I wiped after using the restroom. I took a pregnancy test on the 25th and I saw an extremely faint blue line. The line was no bigger then a strand of hair. So I waited a few days and took another test on the 27th but dident see anything. The tests I used where "one step pregnancy tests" from hyvee. I've never been pregnant so I don't know what it's like. So please give me your thoughts they are much appreciated.