Conception questions

Patient

Q: I was just informed on Wednesday that im pregnant. On thursday I was told that based on my hcg levels I am between 5&8 weeks pregnant. Around what dates did I most likely conceive?

Symptoms:  Pregnant
Doctor

A:   Hello,
Thanks for contacting askthedoctor.com for an opinion.
There are multiple ways of dating a pregnancy.The best and the simplest way to date is to calculate the number of weeks and days from your last menstrual period (LMP)( provided you have good dates as in your cycles have been regular in last 1 year). for example if your beta hcg levels say that you are pregnant between 5-8 weeks then your likely LMP must have been 17th September 2014 or 8th October 2014 (8weeks or 5 weeks respectively).
Second method is to ascertain the ultrasonological age of the conception by doing a dating scan transvaginally which can give an estimated age of the gestation based on haddlock formula .Accordingly the date of conception can be devised.
Beta hcg based levels confirm the pregnant levels but provide a wide range to actually delineate the date of conception.
For all practical purposes the LMP is taken as the marker for counting the period of gestation.It would be advisable to undergo an ultrasound first and accordingly calculate the date of conception , that would be more accurate dating for the conception.

I hope i have answered all your queries in detail.
Wishing you best of health and a safe pregnancy,
Regards

Related Q&A

Q: Is it possible for me to be pregnant? Are these signs? Is it too early to tell? I had unprotected sex on 12/16/16, an...

Q: I had my period from 12- 18 and realised drops of blood from 18-25.had sex on 5-10 but he produced outside .i feel bl...

Q: Hello, I took the morning after pill (19th November) whilst I was at the end of my first period and within two weeks ...

Q: Hi I had unprotected sex on my ovulation day or at least around that time. But I still had my period thirteen days a...

Q: On the poor advice from someone at Planned Parenthood (who I think was a volunteer and not a professional), about a w...

 
DOCTOR ADVISORY BOARD
218

Dr. James Obaji M.D.

  • 247 Reviews
  • Family Physician
173

Dr. Suneel Sharman M.D.

  • 190 Reviews
  • Family Physician
138

Dr. Pat Golden M.D.

  • 169 Reviews
  • Cardiologist
98

Dr. Kunaal Jindal M.D.

  • 112 Reviews
  • Plastic Surgeon
CNN
BBC
MSNBC
CBS
abcNews
FoxNews