have irregular periods after my marriage (married abt 6 months before). I had my last period on Dec 1st and had unprotected ---- on Dec 25.

I have light liquid discharge for the past 2 days. I took 2 home pregnancy tests and both showed -ve results. And I went to the Dr. during 2nd week of jan and the blood test and urine test were -ve. They asked me to take sonogram. but still i have not taken that test.
Iam feeling tired in the morning and feeling hungry at times. My B----- has become larger than before for the past 1 month.

Please Advice whether Am i Pregnant or some other problem?