Currently 16dpo. spotting since 14dpo. took pregnancy test at 14dpo and it was negative. spotting is lighter today. no period. cycle is usually 28-32 days. currently at day 33. is pregnancy still a possibility?

Home pregnancy testing at "14 d post ovulation" may be negative, but wait another 7 days, and if no period onset, obtain a serum HCG test to be certain about pregnancy.

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.