Life can never come into existence. There is just change here, and no matter how much you might like to have been "born", it is simply not a real possibility. No matter your love of life, reality remains.
Know that any boundary line you draw to designate a "beginning" will by necessity be totally arbitrary. Nonetheless such boundaries must be made-up for practical purposes, there being no demarcations in reality. The crucial thing to remember while we go about our business is that all boundaries are drawn by the imagination, and are therefore illusory. I bid you never forget this truth!
Can we avoid these illusions? No, for we have evolved within Nature in such a way that our senses and concepts provide us with boundaries, with illusions, which we must accept if we are to survive. However, we must not be ruled by these marvelous appearances, but put them firmly under our control. If we concretely defined life as existing at conception, then to halt the growth of the resultant chemical grouping would literally be murder! If we let words control our lives in this way we will be perpetually faced with such ludicrous and perplexing problems.