late with negative tests


so on the 5th of March I had my coil out. the 7tg March I had a period for 6 days ... comes to next period nothing!!... 6 days late in fact.... done 8 tests 2 positive 6 negative but 3 negative after the positives.... awaiting a doctor's appointment what would others suggest??? symptoms I've got nausea/sickness most days... had to up size in bras... milk like spots around the nipples... pelvic pains... not to mention mood swings... this would be 1st with my current partner if I was pregnant. 4 from a previous relationship