Hey heart beat hopes.........?

i just wanted to let you all know the good news and give hope for some! since it took me a year and half to get my BFP! i was SO upset when at 5 weeks they said the heart beat was low ( it was 97) it should have been 110-120...they said to come back in a week. the doctor said " whatever happens will happen" i was thinking i would miscarry and sure enough i went back yesterday and now its 133!!!!!!!!! so just giving hope to anyone in this situation!