Your chances of conception are high if you had unprotected intercourse
during the days mentioned. The only way to say if you have conceived would be through recording the basal body temperature
(you should be doing it right from day 1) which would show a rise at ovulation and this would persist if conception occurred. If you want an early diagnosis, you can go for serum beta-hCG
test around 10 days after ovulation. Please consult your gynecologist for further suggestions. Take care.