Important Shari Rules for Womenfolk

Nowadays in our society the women are often not aware of the Shari rules regarding purity and impurity (Paaki & Naapaki) after childbirth or miscarriage.
Women often consider that after childbirth or miscarriage she is Naapaak for forty days. She leaves all her prayers (Salaat) and fasts which are obligatory, but this is not the reality, there are some important rules regarding purity & impurity which she must take into consideration.

The rules are as follows:-
1. After childbirth the blood that comes out is called nifaas. The maximum period of nifaas is forty days and there is no limit for the minimum period, so if the blood stops (completely) before forty days she is pure and Salaat becomes obligatory on her.

2. If a woman has a miscarriage and if few parts of the child have been formed, then whatever blood comes out after miscarriage will be nifaas.

3. If a woman has a miscarriage and no part at all has been formed it will not be nifaas. It will be either Haidh (Menstruation) or Istihadha (bleeding due to some sickness).

The following are the two options.

When will it be regarded as Haidh?
Blood can be rgarded as Haidh when she has completed full fifteen days of purity or if the blood flows for more than three days. She has to perform her Salaat when the bleeding stops (maximum 10 days) and if even after 10 days bleeding does not stop she has to read Salaat as now that bleeding will be considered as Istihaadha.
When will it be regarded as Istihaadha?
Blood can be regarded as Istihaadha when she has not completed full fifteen days of purity or if the blood flows less than three days. She is considered absolutely Paak and she has to perform her Salaat as usual.

4. In the period of impurity, it is Mustahab for a woman to make Wudhu at the time of Salaat, to sit in a clean place and take the name of Allah so that she does not forget the habit of offering her Salaat.