Late Period: When to Take a Pregnancy Test & What to Expect

Question
I WAS SUPPOSED TO START MY PERIOD ON FEB.3 IT IS NOW FEB.7 SHOULD I BE CONCERNED? EVERY MONTH I GO ONLINE TO CALCULATE WHEN MY PERIOD SHOULD COME AND IT IS ALWAYS PRETTY ACCURATE. I USUALLY START TWO DAYS BEFORE OR AFTER AND MOST OF THE TIME ON THAT DATE I HAD CALCULATED. I HAVE WANTED TO GET PREGNANT BUT I HAVEN,T BEEN ACTUALLY TRYING. I WAS JUST GOING TO LET IT HAPPEN WHENEVER IT WAS THE RIGHT TIME. WHEN SHOULD I DO A TEST? I HAVE HAD SOME LIGHT CRAMPING BUT NO SPOTTING AT ALL. I ALSO USUALLY GET A REALLY BAD MIGRAINE  BEFORE MY PERIOD STARTS. I WOULD GET ONE EVERYDAY UNTILL I STARTED BUT I HAVE NOT HAD BUT A LIGHT HEADACHE THAT TYLENOL TOOK CARE OF. NORMALLY I HAVE TO USE IMMITREX TO GET RID OF MY PREMENSTRAL HEADACHES. MAYBE I AM JUST GETTING TOO EXCITED BUT I HONESTLY HOPE I AM PREGNANT.  

Answer
Michelle,

If your menses are regular and you can calculate thr first day of the next period, count back 14 days and that would be about the time of ovulation and is the time you are most able to get pregnant. A pregnancy test is usually positive a week after the first day of the missed period.