Press Enter to search or ESC to close
Pregnancy

How to Tell the Date of Conception

Chiara Bradshaw
· · Updated Jan 16, 2026 · 2 min read
Although it is common to hear the phrase "date of conception," in actuality it is very difficult to determine the exact date a baby was conceived. According to the American Pregnancy Association, unless the mother-to-be has undergone a procedure such as artificial insemination or in vitro fertilization, most women do not know the exact date of conception. Instead of an exact date, a woman can determine a range of dates in which her baby was conceived.

 

Things You'll Need

  • Calendar that includes the conception month
  • Highlighter
 

4 Steps To Tell The Date Of Conception

Date of Conception

1. Determine The Start Date Of Your Last Period

Recalling the first day of your last menstrual cycle is integral to determining the range of dates in which your baby was conceived.

 

2. Locate This Date On The Calendar

Beginning on the following day, count off 11 days. Highlight day 11 on your calendar.

 

3. Return To The First Day Of Your Menstrual Cycle On The Calendar

Beginning on the following day, count off 21 days. Highlight day 21 on your calendar.

 

4. Highlight The Days Between Day 11 And Day 21 On Your Calendar

All the highlighted days represent the range of dates in which your baby was likely conceived.

 

You Might Also Like :: How to Increase Follicle Count on Follistim

 

How to Tell the Date of Conception

Save for later

Found this helpful?

Pin this article to your Pinterest board and come back to it whenever you need a reminder.

Save to Pinterest
Written by

Chiara Bradshaw

Chiara Bradshaw has been writing for a variety of professional, educational and entertainment publications for more than 12 years. Chiara holds a Bachelor of Arts in art therapy and behavioral science from Mount Mary College in Milwaukee.

More posts
Chiara Bradshaw

Responses (0)

0%