when did I conceive?

So I just finish looking at my Ovia app from when I was pregnant and in sept 20 and 21 I had sex from the 22 to the 29th I was on my period...on oct 6th,8th and 9th I put that I had spotting maybe implantation???didnt have a period in oct but found out I was pregnant nov 7th when did I ovulated when my period was on??🤔🤔🤔🤔🤔