In the two week wait, I didn't notice any difference at all when I ran or played soccer. I actually kept saying I wasn't pregnant

Because of my risk factors, I am not allowed to run during pregnancy, so as soon as I got my BFP I switched to walking (Well - couch potato and toilet hugger for three months, then walker) and I can tell a difference in my heart rate and breath.
Good luck to you! I will keep my fingers crossed!
Kat.