Thanks for writing to us.
It takes 7-10 days after conception for implantation
to happen. Since you are sure of your time of ovulation, having a HIDA scan 6 days after conception is not likely to affect the zygote
in any way. Please do not worry.
I hope this information has been both informative and helpful for you. You can consult me again directly through my profile URL http://bit.ly/Dr-Rakhi-Tayal