This baby is the product of me and my ex, who is also my oldest daughters father. I am so worried that my youngest will feel left out when she's older and finds out. He of course has nothing to do with this one as well. Stupid me thought he changed. After realizing he was still into the drug life and cheating I walked away (not before I got pregnant tho) found out he was banging my best friend.. Then 2 weeks later, found out I was pregnant. Anyways!! I am just wondering if anyone has had half siblings with full siblings and felt they had a better bond or what not? Or am I just being silly. I don't want to tell them that my oldest and this baby share the same father because I don't want to start a seperation.