So when did I conceive?

Hi ladies! I found out I was pregnant April 27th the day I was expecting my period I think. I actually miscarried 2 months before then and had one period since then and didnt pay attention to the exact day it came. I assumed it was the 27th because I remember saying something about it being a month after I miscarried. Anyways. On April 22nd I went into the doctor for my OB check up. He did a transvaginal ultrasound saw 3 eggs in my tubes and said "Looks like you should be ovulating in the next 10 days" I didnt think much of of it and was just glad everything was normal again. Then a few days later I popped hot on a test. I even took a few more tests 5-6 days later and they came up quicker with a positive. Was it too early to see I was pregnant then? Did I just conceive then? I havent been into the doctor yet and havent had a measurement yet, What do you guys think?