Pregnant after miscarriage

Courtney • Waiting on my rainbow:)
I'm pretty sure I'm pregnant I'm 6 to 7 dpo...with saying that I'm so nervous I had a miscarriage 11_12_13 at 14 weeks but he died about 2 weeks before that...I'm trying to not be scared the whole time any suggestions or words of wisdom I'm so nervous that if I am I don't want to worry the whole time...