no baby on u/s but + doctor test

Krystin • Im 19 happily married with our first baby boy due in april!
so my wall is thick and looks ready to support a baby and my urine test came back positive did blood test doctor said I might of ovualted later and might be only 3-4 weeks and well see tomarriw I cried cuz I thought I wasn't pregnant hopefully my hormones go up by Friday or its a chemical please pray for me guy!!!!