i already have one child, but with her, i just knew i was preg. now, my husband and i went on vacation, and i missed a total of 6 active pills, spread out between the first 3 weeks of the pack of BC. we did have unprotected sex all throughout the vacation, and i was supposed to start my period on Sept 12th. Its now 10 days later, and still no period. i have had sharp pains all through my tummy region, along with pain that feels like someone is pullin my tummy muscles in opposite directions. cervix is high closed and med/hard, have nausea, extreme fatigue (have to take a nap otheriwse i am out by 7 or 8pm). breasts arent really sore, but are swollen, craving different stuff, and i am normally a very heavy sleeper (ive slept through cat. 5 hurricanes), and now i wake up at least 2 or 3 times a night. took a test at 2 days late and again at 8 days late, both negative. any help? could i be pregnant again?

thanks!