I've been having regular periods,but this month it's skipped,last period date-12/2/2018,but till now it doesn't appear,in march month before 12/3/2018 taking some tests,i.e. hemoglobin-11.2,USG-in normal,chest x-ray-in normal,now having some abdominal cramps,tiredness,lower back stiffness,nausea without vommiting,BP low,mood swings,having weigh issue,weigh falls down,now I am 35 kg 22 years old lady, before I've 46kg weigh,this weight losing issue happens in this one year,if I'm
pregnant?