Your child is a special character in Harvest Moon: The Tale of Two Towns.
To have a child, you must first upgrade your house size by completing Eileen's "Renovations" request which cost 1,000,000 G, 30 Lumber, and 30 Material Stone. After you are married, her second request "A New Bed" will be available.
Pregnancy and Birth
Once you made both upgrades, as long as your spouse has a blooming red flower level, the pregnancy will occur 31 days (one season) later and last 62 days. If you are playing as a girl, you will not have any extra difficulty farming and doing things while pregnant.
In the morning after 62 days have passed, Ayame will show up in the morning and the baby will sleep in the big bed afterwards. Your spouse will suggest a name, which you can choose from a list of pre-determined names or enter it yourself (up to six letters).
During this stage, your child will stay in bed for a year and 12 days. You cannot interact with them in any way. On their first birthday, your child will still be in bed, but there is still a celebration. You celebrate your child's birthday every year afterwards. The party is always at 8:00, and you will receive +1000 FP with your child as well as spouse.
After one year and 12 days, you will wake up to see your child walking and talking. After this event, you can socialize with them. The child will not leave your house, but be there for important festivals.
The next growth to the "full-grown" stage will occur one year after your child starts to walk. To see this event, you have to go to your house after 9:00 PM on a non-festival day. At this event, your child will bake you a cake as a thank you present for your hard work and patience. After the event, you will earn +3000 FP with your child and spouse. As a fully-grown child, their schedule changes a bit. Instead of staying inside the whole day, your child will now go out to the farm area from 12:00 to 6:00 PM on a sunny, non-festival days; they will not walk into town or mountain area.
Both the male and female child like the same things, so no matter which child you have, they will still like and dislike the same gifts. Each stage likes different things.
- Your Child fogu.com