Getting Sick While TTC

Katie
Hello all. Looking for some insight. I'm approaching my fertile week and suddenly feel like I'm getting a cold/flu. Sore throat, headache, aches all the fun stuff. Ugh just took my temp...100.02.  
Is it still possible to conceive while sick with a fever
Can I take Advil, flu meds and things like that or will that kill the chances?
It really sucks, the timing of it all lol. Fml.