hi, im currently on my 8th day date of my regular 28 day cycle. this is very un normal for me im always a regular. iv taken tests (clearblue & first response) & keep getting a negative result. i have symptoms of sore heavy boobs especially the nipple area, have the odd crampy/niggle pains. have experienced headaches over the past few days. has anyone ever has similar & gone on to have a positive result? i appreciate any info as its quite stressful :( xxx