my bitch was given the morning after injection twice 2 days after it happened and then again 2 days later, lately her milkers have dropped and started producing a white fluid, shes eating more but still herself, is it possibly a false pregnancy or it is heard of for bitches still to be pregnant after the jag, shell be 7 weeks at the weekend.

Yes, it's possible for bitches to still be pregnant following the 'morning-after' jab, though a phantom pregnancy is more likely.