Pregnancy test

Should I wait till after a missed period to take a pregnant test or can I take one before my period supposed to come?? Just trying to figure out what would be more accurate?? Because according to my app I’m not supposed to get my period till the last week in December but my fertile window was about a week ago and the day before ovulation me and my husband had unprotected sex. As of Tuesday it be about 10 days and I haven’t had any of my normal period Symptoms that I normally get a week or so before it starts. Please let me know your thoughts as to what would be best to do thank you.