Miscarriage an pregnant

Montana • 19•Expecting👶🏽🌈12.08.19💕

So january 7,2019 i had a miscarriage an had one period on febuary 4, 2019 an im pregnant again an worried its gonna be another miscarriage, the doctor told me i didnt need a d&c. This is my second pregnancy an according to my apps im 3wks an 2days pregnant took a test it said positive.