I havent got time to read Alans post but i'm sure he has eased your mine.

I too am O neg and have had 2 healthy pgs. With DD1 i had a bleed at 36wks which i recieved and extra dose of the anti D injection. We had NO complications and with DD2 i had a very early bleed at 5 week and spent the day in emergecy just to get an anti D shot as its what my GP told me to do but after finally been seen the ER Dr said i didnt need one as it was so early?!?!? Anyway i went on to have a H&H pg.