I'm confused and hoping you ladies can help!

I found out I was preggo about a week ago and the woman at the health department said I was 5 weeks. Well me and my boyfriend moved into a different house a couple days ago. I didn't lift anything really heavy I mostly did the packing. I may have moved a couple slightly heavy laundry baskets but that's it. Well that night I started bleeding and I thought well okay sometimes it's normal to bleed while your pregnant. So I called my mom and she said it should be fine. Well the next night I was still bleeding and this time there were a couple blood clots. So I got scared because it is my first pregnancy and it wasn't supposed to happen in the first place. So I decided just to be safe I would go to the hospital. Well they did blood work and the doctor said that my hcg level was kind of low (534) and at 5 weeks they should be able to see something on the ultrasound which they didn't. All he said was it is a possibility that I miscarried. He doesnt think it is a tubal pregnancy. Has anyone else gone through something like this? Did you miscarry or have a normal healthy pregnancy? Just looking for some answers and other people who might have gone through the same thing.