It is not impossible to get pregnant at any time, but is highly unlikely. It would be your next cycle you would be pregnant with if the sperm lives that long or if you ovulated late. You can always take the morning after pill to be safe but has to be within 72 hours after intercourse and even then many women stay pregnant unless in 24 hours after.
You need to have sex either a few days before ovulation or maximum 1 day post ovulation.Ovulation occurs after period normal range is 9 to 21 days and in some cases a few days here or there but it is highley unlikely to ovulate on period so chances of pregnancy is NIL.
No it's impossible. 14 days ovulation from the first day of ur period...