Concerned

My son was born on August 14, 2003.  The last day I ever had intercourse with his mother was November 3, 2002.  I have tried many online calculators and it seems impossible for him to be my son.  The date of conception on the calculator was Nov.  22.  Can you have a deviation of 20 days from the date of estimated conception??

[maineamy]

Absolutely.  20 days is not much.  It could have been she thought she was having a period and was actually having implantation bleeding.  If you are worried about it get a paternity test done.  Good luck