Feeling sad

I had a miscarriage July 30th & I finally got my period back a few days ago, aug 29th. I was testing positive Until about 5 days before I got AF . The next day after receiving AF my best friend told me she's pregnant . & I'm happy for her bc she's wanted one for so long and was helping me through my pregnancy/miscarriage. It just makes me sad, I would've been 16 weeks 5 days today. I would've already known the sex. Already planned most things 😞 it makes me not want to even try anymore & if I ever do get pregnant again I honestly don't feel like telling anyone . Idk I just have so many emotions and I'm hating myself for miscarrying 💔