Just wondering at what stage you found out the sex and how acurate it was. At our U/s at 19wks the tech said "she couldn't see anything sticking out so it could be a girl" but couldn't be definate. My OB said he would do a quick scan at our next appoint (Next Fri) if we couldn't find out at the big u/s. So my question is this, is looking for a penis the only way they tell the sex? Surely this would be hard to see at most 18-20wk u/s. How did your tech tell the sex and how acurtate were they. Thanks