I'm 5 months pregnant why is it whenever I go to long without food when I do eat ill throw it up? Happens to me everytime today I had breakfast this morning but I was busy all day so forgot to eat till dinner I started to feel nausea and I knew I was going to throw my dinner up, I wasn't even finished eating when I was running to the toilet, after I got sick I finished My dinner and managed to hold the rest down it only happens when I go too long without eating is there any reason for it? I've googled it but can't find an explanation