Help??

I'm ttc and this is my fertile week according to this app, but for most of the week I have had sinus issues or a cold not really sure what and glow says this is ovalation day today but for some reason I feel the worst. I'm ttc a girl. I have 2 Boy's Already AND I've read To Have Sex 2 To 4 days b4 Ovalation Dat For A Girl Cause By THE TIME egg is ready ALL Boy's Are DE Ad Only Girls left..Is THIS BS AND IS Having THIS COLD OR W.e Going To Affect My Chances Of ttc?