I don’t want to work anymore

Hey guys! I’m 20 weeks pregnant and have had ups and downs with my pregnancy but overall I’m so excited for this baby! Basically I work as a lifeguard and although I’m so Greatful to have a job in the first place the more my pregnancy is going on the less I want to work. Getting up every morning is hell and the moment I step foot into my job my stomach turns, I’m losing sleep stressing about my shift the next day and I’m overall exhausted. I just want to relax and lay down and sleep, I’m exhausted and I’m sick of working. I’ve been putting my shifts on a shift board and have had a few days off but now I feel guilty not making enough money and preparing properly. Anyways, I didn’t know if slowing down with work Modivation was a common pregnancy thing or if I’m burnt out, thank you guys for the insight! Good luck to everyone!