Tell the doctor it could be either. He /she will have you wait a month or 2 then send you for an ultrasouns which shoul give you a better idea of how far along you are until then dont drive yourself crazy trying to figure it out. I did as nothing added up but I had a healthy baby boy and thats all that really mattered. Its not worth the stress. Just try and relax and take care of you and baby until you find out how far along you are.
Wish I had a better answer for you. Its just been my expeariance. In the end things still didn't add up for me. And I wish I didn't stress so much over it as I couldn't enjoy my pregnancy or come to turms with it until I was 7 months along. I ended up being induced at 8 months due to complications. Ya it was a long/short pregnancy for me. Lol hopefully have it easier after your ultrasound.
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