A typical atheist way of looking at things, is not it. This will only make your life bitter, nothing else.
Life and death is in the hands of Allah alone. Do you really think that you came into existence just because your mother wanted to have a baby?
How many women try to have babies but they can never have kids?
How many plan not to have babies and yet they get pregnant?
How many women get pregnant because someone rapes them?
It is always someone else's fault, is not it?
What you did not see is that how Allah creates you from nothing in the belly of your mother and how He provides you when you are so helpless in the belly of your mother and even as a kid.
What you do not see is how Allah puts love for babies in the hearts of their mothers even when they go through so much pain and this is true even for animals. The physical and emotional pain a mother endures during pregnancy, labor, delivery and postpartum is but one reason why Islam accords such an elevated status to mothers. In this regard, the Quran reminds people to, "Respect the womb that bore you
." Additionally, some of the traditions and sayings of the Prophet in this regard include: that one owes to their mothers three times more love and obedience than that owed to one's father
, and that "Paradise lies at the feet (serving the needs) of one's mother.
Main issue here is that atheists have no belief in hereafter so for them pain is suffering. On the other hand believers know that there is reward for any pain they go through in this life. The reward may be in this world, or hereafter or may be in both. We can choose to trust in Allah or reject Allah, choice is ours.
If there is no pain, how will one know to be caring and to show compassion to others?
If there is no pain and everything is good in your life, chances are you may forget God. If there are no trials and tribulations of this world, a person could develop arrogance, self-admiration, a pharaonic attitude and hardheartedness which would lead to his doom in this world and in the Hereafter. Any pain which brings one closer to God is good for us whether you want to believe it or not.
Complaining will not make our pain and suffering go away, and in fact it makes it worse.
Anyways I don't want to repeat myself. We look at things very differently. I get happy when I go through trials because I know that Allah loves me and he surely is testing me to elevate my ranks in paradise. It makes trials of this world very easy for me with that attitude. I don't complain and stay humble and God remains in my heart all the time. The approach you are taking will only result in bitterness in your life and you will end up suffering in both worlds. Good luck!