I had a negative blood pregnancy test after missing my period after an iui. is it possible for me to be pregnant but be too early to detect because it has only been 2 weeks since ovulation?

Yes but: Your pregnancy test should be positive 2 weeks after the IUI or intercourse. It is likely you are not pregnant but if it does turn out positive later, it might not be from the iui.

No : If pregnant, the blood test will definitely be positive after 2 weeks. Is it possible that you could have ovulated later?

Unlikely: A urine pregnancy test should be positive if you conceived with an IUI cycle- 14 days after the iui. Make sure you are using a name brand kit and followed the instructions to increase accuracy. Sorry! :( if you are not sure about the urine test call your doctor to have a blood pregnancy test done if your period has not started.