So upset and alittle stressed

Jessie
So I was put into the hospital on Tuesday the 21st I told them I could possibly be pregnant they did a blood test and my levels was 25 HCG which some places consider anything over 15 to be pregnant some consider 25 and above pregnant... the er doctor told me before they put me in a room they would retest me to see if my levels went up in a few days. Well the next day the nurse a urin test and said it came back negitive but they did not check my levels to see if they went up. I am not satisfied with that answer becuase they did not check my blood to see if my levels went up my question is some of these test could be harmful to the baby, so I refuse them and wait til I get out to go get another blood draw or due I trust the rude nurses and do the test and possible risk having a miscarriage. I have so many emotio a going on. And still have not had my period for the month of February I am almost two weeks late thanks for any advice.