I think I'm having a miscarriage

Yesterday at 5 weeks 3 days I started bleeding heavily with small pieces of blood (possibly from a clot) nocramps just lots of blood not enough to soak through pads but I changed them frequently. I went to the doctor and they had me take a pregnancy test that was negative. My heart sank. I have to have labs today and an ultrasound Thursday to find out if I am in fact miscarrying. I am holding on to hope but I am devastated. And to top it off as soon as we found out I was pregnant I told my husband I wanted to wait just in case of a miscarriage (having had a mirena concerned me that my uterus might not be strong enough). He refused to wait and announced it to all of Facebook. If I have lost the baby and he runs to tell everyone I can't handle all the pity that's gonna come on top of dealing with my own grief. Not only am I mad at him for telling but he didn't come with me to the doctor because he thought he might need to go to work (he own a business so he could've waited until my doc appt was over). I kind of feel like he cares less than I do. I know men are different but I hate that I'm the only one stressed and crying over the possible loss of our baby! 

I'm scared. I wanna know what's going on inside my body. I wanna know if I need to grieve my baby. So much is up in the air. Everyone says you can try again, I wanted this baby. I just needed to vent unbiased.