If I am 27 weeks and one day pregnant how many months pregnant am I?

Gauging gestational time is an inexact science. Unless you can pinpoint the exact data of conception I doubt if you can be accurate to the day.

But 27 weeks would be almost 7 months.

I am going to ask you to help us. You originally posted this under a subject of ask an obgyn for free. If you don't mind my asking why or how you came to choose that subject. We are trying to improve use of this site which is why I ask.

I am unsure of the exact time of my last period and was curios how far I may be my dr said my last period was September 22 2010 that's y I was wondering how many months I am

We merely go by how many weeks you told us, Guessing a due date is just that, a guess, somewhat educated, but it is based on info you provide the doctor, and often by the size of the child in comparison to a "norm"
But if you want some exact date or answer that does not happen, unless you only had sex once