I'm in the awkward position of being pregnant by a co-worker. I have to see him everyday at work and also his new girlfriend. this is bad enough, and causing me so much stress I'm having to take a week off work, and now i find out he's spreading rumours about me sleeping with other people at work (which are completely untrue). Im considering putting in a formal complaint but im worried this will just cause more problems, but i also think i need to make a stand. any thoughts?