Sorry, mate, it is transmitted via saliva, tears, blood, everything.
I'm pretty sure you're only contagious while the infection is active though - so if you've seen her since you've been pregnant, and she's had an active infection at the time, then yeah, you might be in trouble. But if she's been exposed, and the infection is now latent, you'd be OK. If you haven't seen her since you've been pregnant, then that doesn't matter either; if you got it before you were pregnant, you would now have antibodies and this makes it less of an issue.
You can get tested - just go to your doc and say you think you've been exposed to CMV. It's a blood test, and may give you some more of an idea.
Good luck. I hope it's all clear.
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