Missed Period, Negative test 14 DAYSS

Destiny

My bf and I are VERY careful about sex (condoms, <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a>, waiting periods etc). But It has been 14 days since my expected period and nothing. After 8 OTC home test and 1 lab urine test, they are all still negative. What should I do? Could i be pregnant?