Chance of pregnancy?

Ladies! I recently removed my mirena about two months now, I recently had sex on my ovulation day, no protection NADA! I know right what was I thinking 😅.  Technically my ovulation day was May 26, I've been feeling very tired lately and my breasts ARE SUPER DUPER SORE! Seriously even when I touch them they hurt they look sorta swollen. I was suppose to get my period two days ago but I have nothing 😐. I also took a pregnancy test 3 days ago, around 11:00 pm and it came back negative but I seriously have a gut feeling there could be a baby in the oven! Any thoughts?!