So I thought AF arrived last Saturday (4 days late) but it was very scant and then pinkish/brown for 3-4 days. Then my boobs started to feel sore on the sides, which usually happens before my period. I decided to take a test the next day and it was a faint, but noticeable positive. I tested again the next day with first morning urine and got the same result. Same thing with a different brand that afteroon. Today I woke up and took another test thinking the line would be darker... No faint line at all. Took another brand around noon... Again negative. What gives?? Has this happened to anyone else??