Sleep Apnea Treatment

I am 17 weeks pregnant and suffer from an anxiety disorder. I go to bed around 11PM and wake up around 11 or 12 the next morning. And sometimes take a nap. Im getting worried because yesterday I did a lot of running around and was out in the heat a lot and fell asleep around 9PM woke up at 1:45PM today and now 2 hours later feel like I could go to sleep again. What should I do?!