hii .. not sure how to put this , no good at writing things up argh

i been seeing my bf a year now .. we had unprotected sex on the 29th,30th and 31st of aug as his going back to college . I think this may have been on my ovulation days , 14 days after my first day of my last period right :S?

my last period was on the 15th til the 21st aug periods are irrugular since ive been off the pill which i came off in june.

anyone got any ideas if i could have concieved? %-)