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Could I be Pregnant?!/Implantation bleeding / sons grams



I am hoping with your experience in sonogram you will be able to clarify some questions. I will number the questions if you don't mind.

1. Abdominal ultra sounds accuracy at 9 week and 3 week. What is the max they can be out by when determining gestational age?

2. Is a 12 week 3 day ultrasound still accurate for dating?

Sept 09 2012
Oct 12 2012 ( 4 days late ) seemed normal just late.

December 2012 abdominal ultra sound dated me 8 weeks 4 days
Jan 07 2013 abdominal ultra sounded dated me 12 weeks 3 days

Google is not my friend! After doing some reading I am in fear that Oct 12, 2012 period was implantation bleeding and not an actual period.

Would the ultrasound reflect differently if it was implantation bleeding? If so what would fetus size be? Would they use Sept 09 as my last period for dating proposes?

Thank you for your time.

Dear Cheryl, I'm sorry but your questions are a little more complicated than I can deal with. I don't feel comfortable answering your questions and recommend that you talk to your doctor about these questions. Does your doctor have access to your sonograms? Your doctor should be able to tell you your conception date and due date. Let me know how you are doing.

Diane Cheryl

Could I be Pregnant?!

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Carie Eichel


I'll be on vacation for a few days. You may email me at if you need to talk during this time. Please be patient as I will be out of town for a few days and may not be able to access email.
I can answer questions about pregnancy tests and symptoms of pregnancy. I can offer networking and resources for local pregnancy testing and resource centers. I can answer questions about various birth control methods. If I am "maxed out" you can email me at to reach me privately.


I have one daughter and 7 grandchildren. I have helped women in pregnancy situations and with birth control options for almost 25 years. I volunteer with Austin Pregnancy Resource Center ( and am involved with Hope Connections Pregnancy Resource Center (

Preliminary sonogram training. Some college.

Past/Present Clients
I have had hundreds of past clients through one-on-one counseling online and at the Austin Pregnancy Resource Center.

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