I was super spacey right around the time I got my bfp. I started get spacey around maybe 4dp5dt (9dpo). On 10dpo it took me over an hour to pick out a cake mix and frosting mix at the grocery for DH's birthday. I was totally unable to get any other shopping done. 11dpo I went to grocery with DH, hoping that would help me to focus, and literally just walked around totally confused about what I was doing for 45 minutes. Everything was just so confusing and hazy and I was exhausted (but not actually sleepy). I just couldn't think and nothing made sense at all. After maybe 45 minutes of "shopping" all I had in my basket was a bottle of pineapple juice, a bottle of milk, some pregnancy tests, and a couple Activias (which I've never bought before, so no idea why I even picked them out). I made DH go through the check out line because I really just wasn't able to navigate the situation. I went outside and sat on a bench while he took care of it. After sitting I felt a bit better, but the feeling didn't really pass for several days.
I though for sure I had to be pregnant. Had never felt so zoned out before. The next day I took my hpt and there was my bfp.