Is my prayer valid, and must I make up the prayers I missed, or should I wait until I see purity, knowing that I have not yet seen any sign of purity? And what is the ruling on postponing the performance of Hajj due to my desire to become pregnant?

Yellowish and brownish discharges are considered menstruation if they are connected to blood. However, if the duration of the blood and the connected yellowish and brownish discharges exceeds fifteen days, then the woman is in a state of istihadah (prolonged vaginal bleeding outside of menstruation), and she must refer to her previous habit or differentiate between menstrual blood and istihadah blood.

Therefore, the missed prayers that the woman considered to be menstruation, while they were istihadah, must be made up. The days that must be made up are determined based on habit or differentiation. A woman in a state of istihadah must perform wudu' for each prayer after its time has begun, unless the bleeding stops for a sufficient period to perform purification and prayer.

As for Hajj, if the Hajj al-Islam has been performed, there is no harm in postponing another Hajj. However, if it has not been performed and the means are available, it must be performed immediately.