Advice??

Katie
Hello ladies I'm looking for some advice or words of encouragement. My boyfriend and I conceived on the first time following Glow and trying for a baby. Today I'm 4w6d according to the <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">nurture</a> app. We are both very excited and have always talked about having kids. We are waiting to tell close friends and family until after my first appointment in case I miscarry. 
I had been blind to the fact that miscarriages are more common than I thought and I didn't realize that until after joining this app. I can't imagine what those women went through. 
Lately I've been having a feeling that something may go wrong in our pregnancy.  I want to be more excited but the thought of losing our little one scares me. I've read some entries on here of bleeding/spotting being bad and resulting in a miscarriage and I've read some saying they bled the first 8 weeks and the baby turned out perfectly fine. I've been spotting for well today will be day 7 and it's not enough for a pad and only happens when I wipe. My doctors office said it was implantation bleeding and I have nothing to worry about because everyone's bodies are different and I'm not experiencing cramps. 
If you've experienced spotting in the earlier stages of your pregnancies I'd love to hear from you so I can stop worrying myself over here. Thank you!