Need some advice

I work for a school district as one of the head security guards and I also work in Manhattan doing ArmedSecurity as well should I still work both jobs while being pregnant right now cause my fiancé doesn't want me to work both of them because we make a really good amount of money together just from him being in the army and me working for the school district and my other job is just money I put in our savings just in case of emergencies so we don't even touch that money but he is really afraid something might happen to me from working both jobs and I'm always on my feet...
What do you guys think any advice will help