My period comes only 2 days. Will I be able to get pregnant again?

While it is quite unusual, it looks normal to me. May be you have a light discharge on the third day as well because menstrual cycles usually last for 3-7 days. If you are having other symptoms such as abdominal pain or cramps, then I suggest you visit a doctor. Read more about what's normal and what's not in this article by Mayo Clinic. http://www.mayoclinic.org/healthy-lifestyle/womens-health/in-depth/menstrual-cycle/art-20047186