I am according to my doctor, 19 weeks pregnant today. They are telling me that my due date is approximately October 4th. The first day of my last period was December 28th. I would like to know the EXACT date I got pregnant. I got with my boyfriend January 5th and don't know the exact date that I conceived..

If you don't know, how can we know? You are asking an impossible question, if you want the EXACT DATE. I mean, your doctor said 'approximately'.

If you are wanting to know the exact date, is there another man involved in this that you were having intercourse with about the same time, and you are wondering which one is the father? Well, the only way you can determine that is with a paternity test when you have the baby. If this is the case of course.

So, no we can't help you.

No, I am not a oby, and we don't have any on AMHD. You are asking strangers to tell you this.

Pregnancy due dates and conception dates are a best guess. There is no way, even with ultrasound, to know the exact date you got pregnant. Due dates, or dates in general, are a best guess, and can be off by 2 weeks either way.

Is this a question of paternity?

There is only one way to be sure of a conception date. That would be if you had intercourse on only ONE day since your last period. Otherwise its only a guess.