Today I thought about my previous plan and I have some revisions.
First of all, i'll need to find the lab material to allow me to actually fuse the egg and sperm, probably not so hard.
However, i'll need a carrier for the child until it is fully gestated which leads me to orangutans which are one of the more similar animals to humans, mind you a human baby will not go into an orangutan as is...so i'll have to experiment on multiple orangutans until I can finally get a procedure down so that the orangutan can hold the human baby. It would then be contained in a facility and I would have to monitor it carefully and keep it safe. Once the child is fully gestated and pregnancy begins I will probably not need to do much, although as soon as the baby is out I will sedate the orangutan and take the child. Once that is done i'll simply have to find a good source of milk, whether artificial or natural.
I'll have to repeat this process with multiple orangutans/primates, this means that i'll need a way to contain the animals as well as artificially administer human children to them. Also, probably going to have to revamp the surgical process later on down the line.
It's a dangerous and extremely unethical work, but for the glory of humanity, I would do it.