You only need enough empathy to acknowledge that your partner might feel like she can’t communicate with you, and that she might be more upset about the lack of open communication than the division of household chores. Talk to her, stop pretending that it won’t make a difference, and don’t get offended if she initially sounds like she doesn’t want to talk, share your frustrations and emotions with her, and let her do the same. Otherwise, if she really doesn’t believe in communication, it’s probably not a good time to find that out AFTER you’ve already knocked her up.