Had sex november 13 unprotected with ex. sex december 13 with new guy missed my period for dec 28 . i took pregnancy test first week of december just to make sure i wasnt pregnant and i had my period normal november 28th to dec 4 ?

When five days have passed since expected menstrual period, obtain a serum HCG test to be certain about pregnancy. Sometimes stress can delay ovulation, which will cause delays of menstruation.

Conception occurs within day or so of the sex. It takes about 3 weeks for the embryo to make enough HCG for 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. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully.