Okay so I had my period march 11 th to the 16th everything normal,I was suppose to get it April 7th,,on the 5th or 6th I started getting dull cramps,I've had a few headaches,back ache,and the last 3 days I've had white discharge I am 5 days late, I did a home test and it was negative, and I did a clinic One today and it was negative ,the last time my period was late like this I was pregnant with my youngest and took me 4 tests with him and 2 blood,could I be pregnant ?