hi im 19 years olds and have been with my boyfriend for almost 2 years and about 6 months ago we decided to have a baby as we moved in are own flat together. So when i didnt come on my period on the 23rd of April me and my boyfriend where happy as i was always on my period on the day it was due and never have been late since i started 5 years ago, so 6 weeks late and 4 pregnancy test later all saying that im not pregnant even though i have sore breasts, lower back pain, and genrally been in a bad mood over nothing lol, i just dont know what to do or think.:( Please help x