I'm 15 weeks pregnant and had a bad cold which I still hadn't got rid of completely. Now the past few days I've caught a new cold on top. With the sore throat, cough, constant mucus production and headache, added to the persisting pregnancy related nausea I'm feeling pretty rough. Barely slept and feel really very tired. I'm due to work a 14 hour day in a busy and stressful job tomorrow and then be oncall overnight returning to normal day the following day. This feels like it would be a massive strain for me but I still feel bad about letting work down. Doing a reduced day isn't an option, In My line of work it's very much 110% or nothing. Am I right to take the day off. I previously have a good attendance record.