Hawaii, Zika, and Bug Spray

I'm 4w5d pregnant with my first baby and we're heading from our home in California to Hawaii this week! It's my first time in Hawaii and we're staying in Kauai. I'm super excited but I realized being pregnant raises a few concerns.

1. Anyone living in Hawaii or recently visited while pregnant... What's the mosquito situation?  Are there a bunch of mosquitos or not many? I was planning on hiking in Kauai.

2. From what I've read, there haven't been many Zika cases in Hawaii. As pregnant lady, I'm worried anyway. Should I be concerned?

3. What bug spray is safe for pregnant women? Any recommendations? 

Thank you in advance for the advice! I just want to keep my little one safe while we're relaxing on vacation.

-worried momma bear to be