Could it be possible??

So my hubby and i have been ttc since June and we finally got our pressed and opks this month. We had sex most of the days I was fertile including the two more noticeable on the opks. I have been having mild cramping since yesterday and this am I had the worse it went away after couple of minutes. My question is when I had my first miscarriage back in 2010 I experience the same cramping before i found out I was pregnant 🤰 but my question is I literary just got done with my fertile window. And had just begin my tww could it be possible the strong cramping I felt this morning mean that I had release the egg 🥚?