Maybe someone whose pregnant can help me??
Anything is possible. In retrospect, I started having this weird blurred vision thing in one eye shortly after I conceived (of course I didn't know it yet) and actually went to the optometrist because it lasted several days. He couldn't find anything wrong, looking back it was probably my blood pressure starting to adjust. When my period was late I was shocked because I didn't have any other pregnancy symptoms and wasn't expecting a positive test (after 4 yrs of trying and negative tests). What you described can happen that early for some, for others they don't feel much different until about 6 weeks in. My cousin got pregnant on her month long honeymoon and had nausea instantly and spent half of their travels with morning sickness. It can vary a lot. I would say if you want to you can start testing 2-3 days before your period is due, some tests are sensitive enough to pick it up that early, just depends on your hormone levels. The 2WW (week wait) is no fun! But you can always take prenatal vitamins if you aren't already just in case :)