Pain during sex.

Hailey • 🌈 baby girl January 19, 2021 Baby #2 due January 2022
Heya, I just have a question. I o'd on the 31st(confirmed) and had MAJOR O pains on my left side continuing to the next day. Now I am 8dpo and my hubby and I bd and I'm experiencing the same pain in my left side while we bd. This has never happened before. Could this be a sign of implantation? It's month 3 ttc and af due the 13th.