If you are measuring a few days different then what your LMP calculates....which one do you go by when saying how far along you are?!

Question

I was measuring 4 days behind my LMP but doctor said to keep our EDD using my LMP since it's less than a weeks difference.

Answer

When I went to the ER (complication) I was suppose to be 8w6d by my LMP but was measuring 9w2d instead! I still don't really understand why.

Answer

They do keep the firt date if it's less than a week cuz it can throw off the whole growth estimates everything if they don't. I had my last period April 29th, I'm suppose to be 11 weeks, I ovulate may 23rd, I only measure 7 weeks on Saturday which makes sense so my due date should be about feb 13th, my period says I'm due feb 3rd. On Saturday they told me I miscarried cuz they couldn't find a heartbeat but I was also so small too and so I see my dr tomorrow to talk to her about it all. They were wrong with y son too cuz I got pregnant on the pill with him. Our original due date was sept 23rd by bold work hormones, then it went to sept 7th by the next blood test and then U/S showed aug 23rd, he was born aug 31st by induction. It's not always an exact science.

Answer

From my LMP I'm 10 weeks and 1 day. Had a scan on Tuesday which measured 9 weeks 2 days.. When my LMP would have made me 9 weeks 6 days... He told me to go by LMP too. Babies are just a little smaller that's all.

If you are measuring a few days different then what your LMP calculates....which one do you go by when saying how far along you are?!

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