On 28 March I had intercourse on my most fertile days. After that my periods came on April 14 which were light and short earlier they lasted for 4_5 and now it only lasted for 1 and a half day. Urine test and beta hcg are negative. But my stomach is getting too bigger after I had sex. Whereas m eating so less always avoid my meal. I'm facing constipation also. What does this mean .does pregnancy tests are wrong or there is something else. My stomach was so flat earlier. Now its 4 cycles m having scanty periods. Now my belly is 30 inches. I am pregnant or not whats going on. Please help me to come out from this.