Allah says (Quran, Ghafir 40:60) what translates as:
Call Me: I will respond to you.
This means that Allah will answer your dua. So if you have a need then ask it of Allah. If you need something for your children or you need help in raising your children then raise your hands and supplicate to Allah.
Here is a little story about a mother's dua for her son. Imam al-Bukhari's mother used to worship and make dua a lot. Allah honoured her and her son remarkably. Her son Muhammad [Bukhari] lost his eye sight when he was young and his mother saw Ibraheem al-Khaleel (the Prophet Ibraheem) in a dream and he said to her: "O you, indeed Allah has returned the eyesight of your son due to your supplicating a lot.’ In the morning Allah had returned his eyesight." [Collected in 'Sharh Usool Itiqaad Ahl ul Sunnah Laalka’aee 9/290] Translated by Abbas Abu Yahya.