Could I be pregnant again?

I miscarried on June 28th I was 11 weeks and 5 days. I bleed for almost 2 weeks and all of my pregnancy symptoms had gone away. Well yesterday I woke up very nauseous and extremely tired and with this nasty metallic taste in my mouth and I again woke up this morning nauseous with the nasty taste in my mouth and just exhausted. Could I be pregnant again? I'm nervous that I'm to early to show on a pregnancy test. i need help!