Hai I am 27 years old female. I have irregular period cycle. My pregnancy is due now. My last period was on March 20th 2016.I get leg and stomach cramps. i also have lower back pain. I get exhausted. But My pregnancy strip test turned out to be negative twice (24th April 2016 and May 4th 2016). Is it possible that I am pregnant? I had a slight blood discharge on April 20th 2016 and May 5th 2016.