Is it possible for implantation to occur 7 days after pregnyl

Patient

Q: Hello. I have been taking clomid days 2/6 and on day 12 I got the pregnyl injection in the morning and 32 hours later I ovulated. I am just wondering is it possible for implantation to occur 7 days after pregnyl.

Doctor

A:   Thanks for your query.
After ovulation ; for fertilization to take place it takes approximately 6-8 hours if the spermatozoa are ready in the tubes & uterine environment .After the egg has been fertilized it takes approximately 5 days for it to develop to a blastocyst & another 24 hours for implantation which could be approximately 6-7 days post ovulation , not from the pregnyl injection. Implantation will occur if the successful fertilization has taken place and the embryo has successful developed to a blastocyst and the uterine environment is supportive for the implantation with appropriate preparation and more important the formed blastocyst ( stage of embryo just prior to implantation it is approximately 150-250 celled stage ) is viable to give rise to a pregnancy.
Hope that answers your query. Have a good day.

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