5DPO yellow tint CM

I have recently just started checking my cervix & paying attention to CM since I started TTC. I do have 3 children but never paid attention because this is really the only time I am TTC. So I am 5 DPO & I saw some yellow tint CM on my panties. Like I said I have never paid attention like I am now because now I am really TTC...someone please help...thanks. :)