does a ip wifi security camera use much internet?

I sympathize with your desire to have a child but this is a Bad, bad BAD idea! Legally: Not only can your friend get fired if caught, in most places this is a felony. And you are an accessory. Unless you want to have a baby in jail, forget it. Biologically: There is a reason in vitro fertilization is a low yield proposition: The conditions do not favor impregnation. That is why it usually takes a number of attempts. Let's face it - the "usual" way of fertilization usually takes a several attempts (on average). Ethically: People who donate sperm do so under very strict conditions and under the assurance that their genetic material will be used appropriately. They have a right to have that expectation fulfilled. And what would you tell your child? That they were the product of a crime? Please reconsider.

I assume you are asking about bandwidth. No, it does not use a whole lot. Streaming whether it be audio or video does not use a lot. If you have cable or fios it should not be noticeable at all.