As teenagers, a new baby between you and their biological parent may be quite upsetting. They have been used to their family as it is, and adding you was hard enough. Now you want to add a baby into the mix? They may feel that you are pushing them out of the picture to start a new family. Your stepson may feel you are waiting for him to turn eighteen so you can start your own family, and have his mother to yourself for this new family. Try very hard to avoid this. Include him in the pregnancy and make sure he remains a central focus. If your stepchild is leaving for college and you are having a baby, there may be concern that you will forget about him and he won't be important as a child in the family anymore. Be sure to keep in close contact with him — send him packages throughout the pregnancy and continue to do so once the baby is born. Don't forget about him; this will help him, you and his relationship with the new baby.

If you have never had a child of your own and your partner only has teenage children, this may be even harder for everyone. It will take extra effort on your part to stay involved in your stepchild's life. He is still a child and needs you, even though he is not your son. If you have the baby and are consumed by the fact that you finally have a biological child of your own, your stepchild will feel that. Try very hard to appreciate and love your stepchild; he is a huge part of your partner's life and shouldn't be any less important because he is not your biological child.

This can also cause tension between you and your partner. If your partner thinks you are dismissing your stepchild now that the two of you have a child of your own, he may be very hurt and angry. There is a lot to think about when you first have a baby, but as a stepparent, you need to think about much more. Be sure to do so, or you will cause pain to your stepchild and your partner, which could result in them having negative feelings toward you or your biological child.