Diagnosed with threatened miscarriage

Kr

Yesterday I was diagnosed with threatened miscarriage. 4 weeks 5 days. This is not good right? 😭 I am cramping some. Definitely not as bad as my period cramps. Are all miscarriages painful and heavy bleeding? Is that possibly on the way? Or is this all it’s going to be? Basically just was told yesterday it was a waiting game to see what happens.