Hollow,thanks for question and don t panic,I will try in a best why to guide you, You have a history of hep.b nearly 5 years ago. most of the patients develop the life long immunity after first infection. But now you just have a abdominal pain .. U don t have other symptoms like yellowish discoloration of urine, eyes ,fever.. Pain in right side of abdomen may be due to many reasons it may be muscular pain,gall stones,can be simple gastritis,renal colic,apendicities You dint mention any other complaints with the right sided abdominal pain.. You will have to go through some blood get your obstretic checkup done I recommend you to do ultrasound and get you obstretic check up done