Just need a little reassurance please...

Sarah

Some backstory...My husband and I started trying for a baby back in February of 2016. We had no luck until April 2017 I found out I was 3 weeks and 4 days pregnant (I always find out early, I get extremely sick). I bled twice in the pregnancy, once at 5 weeks but they said my hcg levels were closer to 4 weeks. I didn't find out that I lost that baby until 9 weeks when I bled again I was told that the baby never really developed after 5 weeks, and the heart never started. Fast forward to now, on September 23rd I took a test because of nausea and it was positive. I'm currently 7 weeks and 1 day, I just saw my baby on Wednesday and heard the heartbeat. The doctor told me everything seems perfect so far, measuring right on track, heartbeat is 139bpm. All my levels are great. My doctor also told me that I should relax and that odds were in my favor now that we've heard a healthy heartbeat and passed the 7 week mark. But I can't seem to relax at all. I'm so happy to be pregnant but I freak out at the slightest bit of discharge or the smallest cramp. I havent had any bleeding this time so far but my anxiety is through the roof. My husband wants to announce on Halloween at 9 weeks but I feel like its too early and part of me wants to wait until 15 weeks to announce. Does anyone have any reassuring stories or advice or anything?