TTC for baby number 2

I was on the mirena for 5 years I had it removed the end of September and had 3 regular periods since then. My last period was 11/26 my cycle is 28 days long. I started ovulating on 12/8, I had sex on 12/7 I was going to try for the 9th as well but my donor flaked. What do you think are my chances? I've had some pelvic cramping and minimal breast tenderness since then. Any other signs that can help?