There is a 1 % chance but that is way rare. And if u were that one percent. U wouldn't know for at least another 2 to 3 weeks before it would show on a test
If I got my next period then no pregnancy chance, right ?
Also u even if u were at this stage the Hgc lvls in a test would not be strong enough. U ovulate about 2 weeks after a period and have a good week window for the egg to be fertilized. Ur just at that ovulation week now. Chances ur preg from the day before ur period atm are not likely.
If unprotected sex there is always a chance but if u only had sex the day before a period the chances are very low.