meri second pregnancy thi nd it's been 5 month now my periods are not back but in my first pregnancy my periods back in 3 month what should I do know

A. As both pregnancies are not same in the same with the period do not come in the same time it will come when it has to come there is no problem in fact some women do not even have it for 1 1/2 years to 2 years also so that is also very normal