I would like advice

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Hey guys! So I have had my nexplanon for almost 2 years now and im having some bad anxiety. I had sex on the 21st of November and he finished inside of me. On the 22nd of November I had egg white like discharge that seemed like ovulation. I called my Gyno and she wasn’t worried at all and said that explain would stop me from ovulating. My period has been very regular coming every other week as you can see. However this week I haven’t gotten it. Yesterday I had some light spotting and mild cramping. My boobs have been sore. I took 2 pregnancy tests (1 yesterday with my morning pee and another wed) both came out negative. Today I see no signs of my period coming. Should I be worried?