Scared..confused...

hello this past week has been one one the worst weeks. My ob measured the baby 5w6days last Monday. Tuesday he checked my cervics still closed. Wednesday back to er heavy blood cramps. was told i was 95% miscarryin I would have to wait and see. Thursday talked to ob. over the phone he seen my vaginal ultrasound and he belives everything okay with the baby. I'm still bleeding and cramping i don't go for an ultrasound till Tuesday morning. I been on bed rest all week. after i eat or lay on my side I have a bump. I have wanted to go to store get a pregnancy test. i don't know if i am still pregnant if I passed my little gummy bear in the toliet. I'm going crazy. I am going back to work tomorrow then ultra sound on Tuesday morning. me and my fiance have been arguing like crazy if I move the wrong way he thinks I'm trying to kill our baby. I don't know what to do I'm super emotional and needing advice.