confusing information and dates

[emzickle]

My EDD is 30th September, (this was worked out on the date my partner and I actually concieved our baby) but my 12 week dating scan gave us the date of October 11th.

Now I am confused to which one to use? As they are a fair way apart... Any advice? Am i 31 weeks tomorrow, or 32 weeks already?

id go by scan date. Are you sure you conceived on this day? I think sperm can live a few days.

whats your EDD when you work it out with your last period?

My EDD with conception and last period are about the same, one days difference I think...

ooo yuck them nasty old sperms...

I would go by the scan date. But to be sure next time you see your midwife tell her the first day of your last period and she will work it out on the gestation calender thingy, they seem to be pretty accurate.