Am I pregnant again??

I gave birth po Feb 1 First and last period ko po nag start nung: March 31 (hndi ako sure kng period nga or dinudugo pa ko that time pero sakit kasi puson ko nun e) -Now di pa po ako nagkakaron ulet. Ilang days na delayed. Possible po ba na delay lang or baka hndi pa yun period nun or pregnant. ? Really need some help