Give Birth is an action performed by pressing the appropriate button when available.
Giving Birth is the final part of the process to create a baby.
You have to form a couple of a female and a male hominid to mate and create a baby. The main way to form a couple is to bond through grooming but you can also give a precious stone to an unrelated clan member.
Once the couple is formed, you need to use the Call Mate command to bring your couple together to being the mating process.
You have to Mate with a fertile female to develop a successful pregnancy before the Give Birth action will appear.
Before you continue the process of giving birth, be aware that if there is anything you want to do now, do so before giving birth. Giving birth moves time ahead 15 months. Your pregnant female will give birth and any other pregnant females will give birth also.
Press the appropriate button and the give birth action will begin. A cut-scene will take place showing the baby being born, the mother and father comforting the baby and each other, and then the baby growing up some and engaging in a playful manner. An on screen display will show that 15 months of time have passed.
You will be returned to the game an an onscreen display will show NEW BABY for each baby born. As mentioned before, each pregnant female will give birth so you may have multiple on screen displays for multiple births at the same time.
You aren't required to give birth right away. You can stay pregnant and not give birth. You can wait until you are in a safer location and/or done travelling so you don't have carry a newborn small baby.
Once the Attachment Need (BB HB 01), Attachment Need (HB 01), and Attachment Need (HB 02) neurons are learned, changing a generation will automatically form couples and babies will be born to those couples.