Confused and have questions

Sarah
Hello! So my period is 7 days late, so I took a pregnancy test it was negative, so then I thought well maybe I'm late cause I might be ovulating, sure enough that's what caused it! My question is, because I think it was the very day I ovulated and was last day I could BD is it still possible for me to conceive even though it was the last day of ovulation. And also if it is possible, when do you think I'll be able to test to see if I did indeed conceive? I'm super new to this and hubby and I are trying for baby number 1! Thanks in advance ladies :)