7 dpo first iui cycle!

Hey everyone! I just did my first iui cycle on Sunday and I’ve had some on and off period like cramps since 4dpo. On 5 dpo I had a sharp pain in the center below my belly button for about 10 seconds then went away. I haven’t had any spotting but this morning I woke up with fuller breast and slightly tenter nipples. Do you think the cramping I had felt could be implantation? Could this be our month?