Conception Calculator: Find Your Conception Date
Medically Reviewed by Dr Afzaal Ahmad
Table of Contents What is a Conception Calculator How Does It Work? How is the Conception Date Calculated and What is it Based On? Facts about Conception Calculating based on your Estimated Due Date Calculating Based on your LMP Calculating Based on Ovulation Dates/Fertile Period Calculating Based on your Ultrasound What Can Affect Conception Dates Is the conception calculator practical? FAQ’s What is a Conception Calculator A pregnancy conception calculator can help you determine when your baby was conceived, based on a few different factors such as the first date of your last menstrual period (LMP), the due date of
Conception Calculator: Find Your Conception Date
About The Author
Daniella Hall
Mom to an amazing and crazy toddler, Aaron, with a passion for women’s health and wellness. One the side she also loves being outdoors, baking and creating cooking videos with Aaron
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Hi! As of today, January 18th 2020, I am 17 weeks and 6 days pregnant. I didn’t have my period because I was breastfeeding and I had intercourse with guy A on august 27th and with guy B on September 19th. Who could be the father?!?
Hello Vanessa! Based on your information above, guy B could be the father. If it was guy A, your pregnancy should be far more weeks ahead. All the best on your pregnancy!
Hi im wondering who the father is because the 1st day of my menstrual period was the 9th of December 2020 and it ended the 16. I had sexual intercourse with someone else the 17th and then I had sexual intercourse with my boyfriend the 18th throughout til January 4. Which one is most likely to be the father. Because don’t you ovulate 10-12 days before your next period starts
Hello Rosa!
Given your last menstruation to be Dec. 9-16, it is most likely that your boyfriend is the father. The sexual intercourse you had on the 17th is safe. However, the ones you had on the 18th onwards belongs on your ovulation window which is Dec. 19-23. I hope this helps!
Hi,
My period started on Aug.22,2020 and I had sex with partner A on the 1st of September. I also had sex with partner B on September 4. Who could be the father? Help.
Hello Grace!
The sexual intercourse on both guys are done within your fertile window which is on Sept. 1-5. Have you seen a doctor? How long are you on your pregnancy? If you have the date, we can count the days and check who the father is. I hope this helps!
So I had unprotected sex on 0ct 5 with Guy A, then again on Oct 9 with Guy B!!! I got my period on Oct 10 and now I’m about 9 weeks period!!! Could I have got pregnant on Oct 5 with guy A!!!
Hello Indrea!
If you had your period after you had sex with both guys, then no conception occurred. Have you visited a doctor regarding this matter?
Hi so as of today October 30, I’m currently 12 weeks and 2 days pregnant. On July 30, I had sex with a guy and then in August 7 I had my period well. I think it lasted about 3 days and a half. After that I started seeing my ex again and was having sex with him all August. Now I don’t know who the father could be. Can anyone help me and help me figure out my conception date
Hello Nat! The unprotected sex on July 30 didn’t conceive a baby because you had your period on the 7th. This means you had sex during week you were not ovulating. Based on your sexual activity and your last menstrual period, your possible conception date is around August 16-31.
I had sex with a partner on 28th December, 2015. Again she went to have another sex with partner B in the 3rd January, 2016. I want to know who is likely to be the father of the kid. He was born on 14th September, 2016.
Hello Victor!
If the child was born on the 14th of September 2016, the child’s probable conception date is December 28, 2015.
Hello there, I had unprotected sex on the 12th of March 2020 with guy A and my period was late for 3 days. I was supposed to get my periods on the 26th of March but they came on the 29th of March 2020 and lasted for 4days. Then had sex with guy B on the 6th of April 2020 and missed my period that month. On the 23rd of May, I found out I was pregnant then went for an ultrasound on the 15th of June my EDD was 28 December 2020. Who’s the father?
Hello Mimmy! First, congratulations and stay safe on your coming delivery. Based on the information you have provided, guy B is the father. Based on your EDD, the possible conception date is around April 3-April 13. And since you only had sex with guy B after your menstruation on March, he is then the father.
I had sex July 2nd with one guy & July 19th with the other. Currently (todays date is October 17 2020) my doctor says I’m 15 weeks & 2 days.
So when I googled 15 weeks ago it said July 4 subtract 2 days & you get July 2nd so is guy #1 the daddy?
Hello there! Based on your ultrasound, yes you are right that it is guy #1.
Hello I had sex on June 21,2020 with my bf. My period usually comes at the end of the month but I only bled for 2-3days which is irregular. Me and my bf broke up then I had sex with someone else on July 5th. I am due March 30th 2021. Who could be the father?
Hello Sarah! Congratulations on your new bundle of joy. To answer your question on who the father could be, it is the guy you had sex after your June period. Since your due date is March 30, 2020, the possible conception dates range from July 4 to July 14. I hope this helps you out.
i had sex with this guy i be talking to for a while on august 8th then i had my period. But i don’t remember when but i know it was in the end of August then we had sex September 19th. I got my period on the 23rd but my stomach been cramping & my back been hurting & certain smells like taco meat smells horrible to me & my back kind of sorta hurt , & i been tired , i could sleep all day
Hello! You can still have stomach cramps and back pain during your menstruation. Pregnancy and menstruation almost have the same signs aside from a positive pregnancy test.
I was supposed to see my period on the 4th of September… I conceived on the 10th of August but nothing shows and no signs of pregnancy nor period pains nothing… What does that mean?
Hi! So aside for the delayed period, there is no other pregnancy symptoms right? Have your tested and confirmed if you are indeed pregnant? If so, there should be nothing to be worried about. Pregnancy signs are different in one person, and different to another. Some of the signs even come later. Visit your doctor to learn more of your pregnancy and best of luck!
Hi. I need help. Can anyone help me I am new to this. I had unprotected sex with GUY A on December 22nd and had my regular period on December 24 – 28. Then had sex with GUY B on December 30 till January 12.
My first scan in February 7 said I was 6weeks who is the father
Hi Grace. Based on your timeline, the father is GUY B and around Jan.3-18 is your conception date. It is also possible to have conceived the day you had sex with GUY B if we base on your scan. Congratulations!
I had sexual intercourse with two partners i had sex with patner A on the 1st of February 2019 then partner B on the 11 February my child was born on 31 October 2019 help plz to find out who is the farther of my child
Hi, my last period was November 8, 2019. I’m due august 13, 2020. I had sexual intercourse Nov 17&18, 2019 by the same guy. Then, not to sound wrong but I had sex again nov 25,2019, different guy. Who is most likely the father? Please help me.
Hello. I am 28 weeks pregnant now. I have had a lot of anxiety about my situation for months. On December 21, 2019 around 4am I had sex one time with partner A. He had trouble keeping an erection and we used condoms. But we did have unprotected sex for about a minute. But after that minute he couldn’t hold the erection again, so we just stopped having sex. He never ejaculated or came close to ejaculating.
On the night of December 23, I had sex with my main partner (B). It was completely unprotected. And my partner ejaculated but not inside. I thought he had “pulled out” in time. I have went about my pregnancy with confidence that the father is partner B due to the circumstances. But I am just needing to hear it from someone else that it is possible to get pregnant on December 23 with an expected period the 3rd or 4th of January 2020. Partner B has gotten me pregnant twice before without ever ejaculating inside, so I’m thinking he may have a pre-erection problem.
My due date is September 14, 2020.
I have a condition called vaginismus which makes penetration and sex kind of difficult. I attempted to have sex with Guy #1 on May 20. He put on a condom and attempted to put his penis in me and only got about halfway in before I told him he had to stop because I was in pain. On the night of May 24 and morning of May 25th, I had successful sex with guy #2 about three times, which also happened to be my ovulation day. When I went to the doctor, I found out I got pregnant on May 27. My period was from May 13-May 18 and my due date is February 27, 2021. I just wanna confirm that guy #2 is the dad.
Actually I don’t remember the accurate due date, but I know it’s toward the end of February 2021.