I'm 18 weeks pregnant and I'm starting to freak out about how I'm going to handle my 2 year old and newborn.. I'm barely making it right now because I'm so exhausted all the time, I can barely stay awake. I give my daughter the tablet more often than not. I'm still dealing with nausea and lightheadedness and nearly passing out often. I know that some of these problems will go away after birth but I know I'm going to be exhausted beyond relief and I do not operate well without sleep. At all. I have no idea how to prepare myself for having a toddler and a newborn. I know moms have done this for years and have figured it out, I'm just freaking out I guess. Any advice?