I'M 19 YEARS OLD AND 16 WEEK PREGNANT ANDIM DUE APRIL 13, 2009 I HAD SEX ON JULY 5 AND I HAD SEX ON THE JULY 11 ALSO ON JULY 21. THE PART THAT I'M VERY CONFUSED BECAUSE I CAME ON MY PERIOD JULY 23 SO I DIDN'T THINK I WAS PREGNANT. I BELIEVE THAT IF I GOT PREGNANT ON THE 5TH THEN I WOULDN'T HAVE CAME ON MY PERIOD BECAUSE IT WAS LIKE WEEKS AFTER AND I ANOTHER THING I TOOK A TEST ON AUGUST 6 AND IT WAS NEGATIVE. JULY 11 IS THE DATE THAT KIND OF ADD UP WITH THE 16 WEEKS. I JUST WANT TO KNOW OTHER PEOPLE THINK. PLEASE STATE YOU OPTION .I WILL LIKE TO KNOW WHAT OTHER PEOPLE THINK. I KNOW IT 2-3 DAYS TO GET PREGNANT...