Hi... I m 4 month pregnant but i didnt feel any movement ..5 aug was my last period date but doct saying its my 18 weak how come?? Please suggest me

Fetal Movement Week By Week: What To Do When Movements Reduce, What Is Normal And What Is Not

You will feel around 25 weeks..
That's fine one or two weeks here and there it shows due to the fetal development.. not to worry..