Missed periods and today was 2nd day of missed. took pregnancy test its sensitive. shows neg but i feel symptoms of pregnancy. is the test correct?

May be too early: to test. Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about two weeks for the embryo to make enough HCG to produce a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. A negative result on a test done too soon is not reliable.