Pregnancy Conception Timeline: Calculating Due Date & Conception Date

Question
I had sex on March 28th but had a period in April and ok i had sex April 30th i didnt have a period in May but i had sex on May 30th and May 31st i took a pregnacy test on June 3rd and it said i was pregnant....so when did i conceived and the baby came on January 31st i went into labor on Janaury 26th


Answer
Hi,

Based on the dates you've given, April 30th (or a day or two after) is most likely when you conceived.  


The first date is too soon, and it's pretty much impossible that you would would have gotten a positive pregnancy test only 4 days after having intercourse for the May dates (it usually takes about 12-14 days after conception to see a positive result).


April 30th fits best with the details you've given.



Best,
Catherine