Is brown spotting/ discharge in to first trimester safe?

Britney • I'm a happily married to the love of my life and I'm a 27 year old who is graduating university soon this year and is hoping to start having some beautiful babies soon! We have had one pregnancy and miscarriage at 7 weeks so far hoping for a rainbow baby
I have already seen the doctor and he isn't worried and my beta blood test came back positive and pretty high/ good I'm just nervous because I have spotting almost every day he said as long as it's not drastic and doesn't fill a pad or anything or a big change it should be fine nothing to worry about he thinks its still implanation bleeding or from the baby attaching to the wall on a capillary so every time it digs in more it bleeds a little bit but I'm just a nervous first time mom lol I've heard of some ladies having a full on period like bleeding in the pregnancies and having a healthy baby a nurse has even told me that before what do you guys think? Should I relax even if it is almost everyday this happens?