Are these the reasons that stops you from having more children?!
In The Name of Allaah, The Most Merciful, The Bestower of Mercy
Imaam Muhammad Ibn Saaleh Al-Uthaymeen (rahimahullaah) said:
What then is the (reason) behind the call for birth control? Is it out of fear of a straitened livelihood or tiredness from bringing up (children)? If it is the first affair, then this is evil suspicion towards Allaah (The Most High)—and that is because Allaah (The Most High) said:
وَمَا مِنْ دَابَّةٍ فِي الْأَرْضِ إِلَّا عَلَى اللَّهِ رِزْقُهَا
[And no (moving) living creature is there on earth but its provision is due from Allah] [Hud: Ayah 6]
And when Allaah (Glorified Be He) creates a created being He definitely provides for it. Allaah (The Most High) said:
وَكَأَيِّنْ مِنْ دَابَّةٍ لَا تَحْمِلُ رِزْقَهَا اللَّهُ يَرْزُقُهَا وَإِيَّاكُمْ ۚ وَهُوَ السَّمِيعُ الْعَلِيمُ
And so many a moving (living) creature there is, that carries not its own provision! Allah provides for it and for you. And He is the All-Hearer, the All-Knower] [Ankabut: Ayah 60]
And He (The Most High) stated about those who kill their children out of fear of poverty:
نَحْنُ نَرْزُقُهُمْ وَإِيَّاكُمْ ۚ
[We provide for them and for you] (Israa: Ayah 31)]
And if the (reason) behind the call for birth control is out of fear of tiredness due to bringing up children, then this is a mistake; for how many a small number of children are there whose upbringing involves great difficult, and how many children are there whose upbringing is much easier than that of those far smaller than them in number?! So the affair of bringing up children—the difficulty and ease of it—is dependent on ease facilitated by Allaah. And whenever a slave (i.e. the Muslim) fears Allaah and follows the paths of the Islamic legislation, Allaah makes his affair easy. Allaah (The Most High) said: وَمَنْ يَتَّقِ اللَّهَ يَجْعَلْ لَهُ مِنْ أَمْرِهِ يُسْرًا [And whosoever fears Allah and keeps his duty to Him, He will make his matter easy for him]
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Slightly Paraphrased: see link http://www.sahab.net/forums/index.php?showtopic=114969