Hi Littlemai
I try not to respond to posts like this unless I definitely know what I'm talking about, but I see that you haven't had a response yet and you're panicking, so I'll at least hold your hand and give what advice I can until someone more expert comes along.
Firstly, beware googling stuff like this, because you can find websites that support any theory about what is/isn't dangerous. 
Secondly, if in doubt, I look at what the NHS website has to say, and if you look here, it suggests that, although toxoplasmosis is a real risk in pregnancy, the chance of getting it in the first place is incredibly low. So maybe take a deep breath!
Thirdly, and this is a big uneducated stab in the dark - whereas it's generally agreed to be wrong wrong wrong to serve chicken or turkey in any way pink, it's the norm to serve duck rare. So I'm going to take a guess that there's something different microbiologically going on with ducks. But I don't know how that works in relation to pregnancy, and I'm not an expert, so that's maybe not a helpful comment.
Finally, I think the thing to do is just get in touch with your GP or midwife. You're probably absolutely fine, but if nothing else, you need some reassurance from someone who knows what they're talking about - especially if you're giving yourself tummy ache (I've been there too!). You're not bothering them unnecessarily - it's what they're there for.
Take care! 
x