Having flu?

Start having flu since saturday where i tot it was just sinus. Tot ill be fine after a good sleep but woke up yesterday and found myself being restless soon after having headache even tho i slept alot... day 3 now and having block nose , abit of sorethroat (u can feel it , like gonna start coughing soon)... Lie down on bed too long , feel restless and headache.. but will feel restless if i head out as well, have the urge to take medicine but i know its not good.... Really having a hard time now .... Currently 18 weeks preg #1stimemom #advicepls