Period, ovulation or implantation?

Last day of period 7/17

Positive LH Surge on 7/24 and 7/25

Had sex on: 7/18, 7/24, 7/25

Cramping and lower back pain 7/25, 7/26, 7/27 and 7/28 and have noticed my boobs are a little sore today.

Expected next period: 8/9

TTC and hoping this is something🤞🏻