Do toddlers get a “premonition” that they are going to have a sibling?

My 2 year old is going to be a big brother this summer. As the pregnancy is progressing, Im noticing more and more highly unusual behaviors from him: increasingly territorial behaviors, a child that would normally accept no is now throwing 5 min tantrums, he is reverting back to “baby style” crying, last night he insisted on being rocked to sleep- hasnt done that in months, all of a sudden waking up in the middle of the night and asking for milk.Am I crazy to think that he knows whats coming? via /r/Parenting https://ift.tt/2UlHBRE