preggers? is it possible?

[Bertolli]

Is it possible to get prenant if you have had sex on your period/ at end of? sorry to be so blunt but i thought it was "safe" but now i'm a bit worried as i feel a bit like i might be.. have 2 young ones already

It is theoretically possible any day during your cycle.

Less likely (unless you have a 3wk cycle in which case this will be your most fertile time) but still perfectly possible