Please help me

I took 5 tests from clear blue and it says i am pregnant but i dont feel pregnant at all. I took the pregnancy test on dec 30th and it is jan 14th now. I dont feel pregnant anymore. All i feel is cramping inside of my stomach. I am scared i am not pregnant anymore. I want to buy pregnancy test again to see if i am still pregnant. I been trying to get pregnant for over 4 years.