No nausea

Hey everyone! So I've been very nervous the last couple of days. I'm 7 weeks today and I don't see the doctor till next week. I'm really bloated and gassy with occasional heartburn. My breast are very tender but I'm not really nauseous. Sometimes a little if I eat to much or if I wait to long to eat but other than that.. nothing. Most of the time I feel pretty normal. With my last pregnancy I was sick all day. Last summer we had what they call a missed miscarriage I'm so worried something is going on with my baby. What do you guys think???