There are 3 auspicious times for a woman to pray, especially to be blessed with children. These are:
- After a woman has immersed in a mikveh
- After lighting candles for Shabbat or festivals
- While she is making challah
These three mitzvot, which are especially associated with women, will elevate one’s prayers, having performed acts of purity and holiness in G-d’s eyes.
Of course, one can pray at any time, anywhere, however to pray after having performed a mitzvah – a holy commandment from G-d – can elevate the prayers and make them greater.