Roughly September 29th 2009, give or take a few days. However, it is difficult to accurately say when a conception date is. Therefore, I suggest talking to your doctor, midwife or obstetrician about it.
15th June 2009? Your due date would be roughly Monday March 8th 2010
June 6th
MIddle of June
June 2008?
June 8th 2010
it is due on June 24
Feb.
July 21st, 2010
The approximate date of conception was March 21st
Assuming the due date is June 1st the baby is 13 weeks.
An ultrasound
The best would be to ask your pharmacist. If your periods are regular, you can take the test the day after that when your period would normally start. But just to make sure and not waste your money, wait for another two or three days - then do the test.