On occassion, it turns out that a very small fetus can “exist” in principle, as evidenced by macro human symptoms and detectable hormones.
But, if you try to actually look at it when the fetus too small, it can either appear or completely disappear. Not unlike the proverbial electron.
Effectively a small fetus exists as a probability function – a wave. A waving baby.
If you look at the quantum waving baby too much while its small it will stay gone. The universe in which it exists departs the present us.
Better to let it grow into existence then me thinks. While the symptoms are here. And assume that the quantum effects will pass.
(Written in jest)