What is going on with my body?

So, hoping and happy to become a first time mom. But have a few things that concern me at the moment. I got pregnant and had a miscarriage in 2019 after being off IUD birth control for a few weeks. And I recently found I am pregnant now, 7 weeks. But I have been spotting/bleeding brown blood. I feel at times I feel pregnancy symptoms but at other times I don’t. My first prenatal appointment isn’t until the end of this month and I really don’t know how to feel.