Creamy & Stretchy Cm 4 days before Ovulation ? Is this peak fertile day

I had sex with my husband 16 17 hours ago and now I can see creamy and stretchy CM Is this because of the ejaculation or it is my fertile CM. I am still 4 days away from ovulation I am not tracking with OPks. am I at high peak?? I never get egg white stretchy CM this is the first time that I have seen creamy stretchy CM