How to estimate due dates with irregular period

Heather

I had a baby in August 2018 and didn’t get my first period until June 2019. Since then my cycles have been 31-40 days apart. My last period was on October 27th and I took a pregnancy test on November 28th and it was positive.

Does anyone know how to calculate my due date? Should I be seen earlier than the typical 8-10 weeks? Thank you!

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