10K race advice

I have enrolled in a 10K race a few months ago. I have run a lot last year, including a half marathon, so I was pretty sure about this race.

But now I'm 9 weeks pregnant and running is much harder than I expected. I only managed to run 5K today and this was my first run in 6 weeks due to nausea.

The race is next Sunday. Do you have any advice for the race? Or is it better to skip this one.