Losing my excitement

I'm 8 weeks pregnant and I've been having pink and brown discharge for almost 2 weeks. Well today was doing good like no discharge at all until I was getting ready for church and I needed to go real quick and wiped to find bright red and more than usual! I feel like my symptoms have faded. I feel like I don't have the right to be excited anymore. Everyone keeps saying it's normal. I'm so scared to lose this baby. I've tried for 3 years and finally happened. I'm going to be devastated if something happens. I know this is in God's hands and there is no way to stop a miscarriage but it doesn't stop the pain and emotional roller coaster I've been through in the last couple of weeks. I see the doctor in the morning and I've been put on bed rest again. I just don't know how to stay optimistic any more.