According to Osho, creating biological children is unnecessary and even harmful today: the planet is overpopulated, and the desire for 'my own blood' is an egoic, possessive impulse. Real love is non-proprietary: care for the many children already here, adopt the hungry, and expand family beyond genetics to a conscious community, enjoying children without ownership.
There are already plenty of kids who need love, so care for them instead of making new ones just to have your own.