Sorry for your lost it could happen i had lost my baby feb,5 last year and got pregnant two weeks later so yes the test could be right
Sorry for your loss but it could be possible I had a miscarriage March 18 naturally and the doctor told me if we weren't ready to tried again use protection by pregnancy happens again fast for some ppl so good luck and congrats!!!
Could it still be high pregnancy hormones from your lost pregnancy? Otherwise congrats and good luck!