You could try. I missed my period on 12th of sep. Did pregnancy test on 15th and it came out positive so they pretty good at detecting hormones.
You could try, and if it's negative, test again in a week or so. Some people will receive negative tests until about 2-3 weeks AFTER their missed period. It *****. But you never know, you could have enough hormones to get a positive. Good luck :)
I was only a few days past my missed period so it's worth a shot but don't be discouraged if it's negative! Wait a few days and test again
I took mine day of missed period was positive went to dr didn't get positive till 4 days after missed period at dr