2weeks delay pang 4th period ko na to after CS delivery nung February, 5pt negative

Today is Aug 9, 2 weeks na po akong delay pero yung period ko normal na simula April. Nag pt ako 5 times na pero negative pa din, wala nmn signs pero mbigat puson ko minsan masakit din. Normal lang kaya yung umabot ng ganito? Tia