PLAN B HELP!!!

So I had sex on day 3 of my fertile window (according to this app) and we had a mishap with the condom. I took a plan B about 45 minutes after the incident. It has been about 7 days since I’ve taken the plan b and I’m moody, bloated, tired, anxious, cramping, and have sore breasts. I have had no withdrawal bleeding, which is what I got the first time I took a plan b about two years ago. I am freaking out! According to this eve app and the little descriptions, it said I was ovulating the last day of my fertile window (21st). On the 17th (the day I had sex and took plan b ) I was in “high fertility” but not “peak fertility” so I am assuming that isn’t my ovulation day? I am hoping I wasn’t ovulating on the 17th. How accurate is this app with fertility? I just need some peace of mind. My cycles are typically 30 or more days apart.