Baby brain

Baby blues...I went for an ultrasound yesterday and found out I am only 5 weeks along...meanwhile I thought I should be starting my second trimester and seeing a bump.  Oh well, I had a mental breakdown about it and then was done with it, nothing I can do but start over mentally and not stress the small stuff!  Some things have been happening lately that I have had a weird time with.  First it is all these dreams about people who I have not seen in years, ex-boyfriends, people I used to hang out with, I'm not sure why these things come up but some of them are freaking me out a little bit.  My first serious boyfriend from high school was the last one.  Where in god's name did that come from?  He was like a neurotic circus guide of some sort that would not help me and the person I was with find the way out or something...weird.  Secondly, my ex-husband's name is on the tip of my tongue for about a week.  I go to say something to my fiancee and my ex's name almost makes it out.  What the hell?  I am just chalking it up to baby brain and hopefully it will pass soon!!