No - the clinic didn't offer bloods for D21 during IUI. I had them throughout Clomid cycles and felt bit like a pin cushion - esp when I had to go back for D28 bloods too!!
Sounds promising for you if you are starting to have success with OPKs.
Got to hold out until testing becasue if I test early, I could get a False Positive due to the injections that I had to give myself earlier in the IUI. Got to make sure that the HcG trigger shot has gone from my system. The consultant said I didn't need the HcG trigger because it looked as though I was ovulating naturally - but took it anyway (just in case there were any other follicles that decided to grow another 2mm overnight and become viable and then be released by the HcG trigger! Unlikely, but you never know how Mother Nature works sometimes!) Kind of wish I hadn't because then I would feel bit better about testing earlier, but hey ho! If I hadn't, I'd be worrying that I hadn't ovulated! Catch 22!
Got lots of PG signs, but....... could be due to the extra progesterone I have to take, so can't read into any of the signs too much! Never know - may be our lucky month if wait until Sunday/Monday (4years TTC to the month then!)