OP...in your shoes, I'd keep good safe ( off site ) written logs of who said what when. And I would take great care to follow employer directives and do my job well etc.
IN the meantime and rather soon and with ZERO comments at work or among friends or social media posting ..I would review my fact pattern with a CO lawyer whose practice area focuses on employment discrimination.
IF and It's still an IF question, IF the employers actions seem inconsistent with the CO act , you must file a complaint with state as to employers failure to accommodate or whatever within 6 Months of the start of all this , NOT the 300 day deadline as might apply for matters of joint state / federal coverage ...absent any Federal issues. As others post, your pregnancy issues may not fall under any relevant Federal protection umbrella ...my crystal ball is not working on that. .