please help.

Shyann

Ok so I have the skyla and I had it inserted in early October it came out. I had another one put In about a week later no issues. I waited a few weeks like your supposed to before having sex. Me and my boyfriend did have unprotected sex but he has never came in me without a condom on. fast forward to now 4 months later I haven't had my period. I'm 13 days late. I'm having hard cramps. My cm is either white and creamy or white and sticky. I'm not in the mood to do anything sexual. I've taken 2 pregnancy tests and posted on here before about my out. I'm a complete worry wort, and so scared somethings wrong or I'm pregnant but my tests came back negative like no argument negative. Anyone else experience these symptoms? or have any input? Thanks in advance.