Hello im 21 yeara old and i am very regular at my periods have never missed or been late ever ,I have a little problem also I am currently 5 days late on my period I know it's a little to soon but everything is possible Ive taken 2 home test with urine both came out negative and yesterday I had a blood test also negative but my boobs have been hurting they feel sore and I am also using the bathroom more than usual please help what can I do?