I got a BFP 10 days after ovulation date:)
You only ovulate on one day - so those dates would be dates surrounding ovulation (or your most fertile times). Should you conceive from having sex then, you wouldn't start to feel symptoms (if you get any) for at least another 2-3 weeks. Most people don't see symptoms until 6 weeks pregnant.
Early signs of conception are slight and so can be easily missed, or can be signs of something else. Light cramping or maybe spotting (implantation bleeding) would be about all you would feel - if you got any. Implantation bleeding is very light bleeding/spotting and would only last a few hours or a day. Again - this isn't extremely common and not all women get this.
All you can is relax, try not to think about it much and wait and see if your period shows. If not, the test with first morning urine.