We think with our minds, not instincts. In my opinion, only IVF and need to leave to carry guaranteed healthy embryos.
And now turn your head on and read what is going on with IVF - a woman. It is enough for a man to be put into a bowl, and it is free. And the grandmother is first squeezed with hormones to cause multiple ovulation, then squeezed with hormones to plant the embryo (and they are not squeezed, and all this is repeated and repeated). Pregnancy-birth is not sugar, and this is all in addition. Fuck my mommy.