# Conception 

**URL:** <https://community.patient.info/t/conception/744125>\
**Category:** Pregnancy\
**Tags:** Pregnancy and genetic disorders\
**Created:** [10 August 2020 18:00 UTC](https://community.patient.info/t/conception/744125 "2020-08-10T18:00:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nh\_user\_1327693](https://community.patient.info/letter_avatar_proxy/v4/letter/n/53a042/32.png) [@nh\_user\_1327693](https://community.patient.info/u/nh_user_1327693)\
**Post date:** [10 August 2020 18:00 UTC](https://community.patient.info/t/conception/744125/1 "2020-08-10T18:00:53Z")

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Hi I have a question about when I conceived my daughter. The first day of my last period last year was 18th of October so I roughly ovulated around the 28th of October to 30th of October 2019 and my due date from my dating scan was 20th July 2020 and when I used the due date calculator online and it said I conceived on the 28th of October but let’s say I conceived on the 29th or 30th October would my due date from the ultrasound still be 20th July ? I’m just very confused because I couldn’t have conceived on the 28th of October

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**Author:** ![nh\_user\_1329802](https://community.patient.info/letter_avatar_proxy/v4/letter/n/9f8e36/32.png) [@nh\_user\_1329802](https://community.patient.info/u/nh_user_1329802)\
**Post date:** [24 August 2020 07:49 UTC](https://community.patient.info/t/conception/744125/2 "2020-08-24T07:49:07Z")

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If a sperm cell does join up with your egg, the fertilized egg moves down the fallopian tube toward the uterus. It begins to divide into more and more cells, forming a ball as it grows. The ball of cells (called a blastocyst) gets to the uterus about 3–4 days after fertilization