I feel broken

I had a chemical pregnancy on November 3 and I still have not had my period again. It has been over 7 weeks now. I'm having such a frustrating and difficult time while I wait for my cycle to reset. I have thought numerous times through the past 7 weeks that I ovulated. Then I wait another two weeks and test and get BFN. I just tested this morning and yet another negative test. I am so defeated and angry. I should be 12 weeks pregnant for Christmas. And the cherry on top is that my sister in law told me she just found out she is pregnant and her and my brother in law will be announcing it at Christmas. This is their third kid. I feel like they are rubbing salt in my wound after I lost my first baby. I hate my body for taking so long 😢