no morning sickness now

This past Monday I went in for my first ultrasound for this pregnancy. I was 6 wks/2days. The baby''s heartbeat was 102. The nurse said that was normal since the heart just recently started beating. I starting experiencing bad nausea last week and this week it was AWFUL... all the time... until yesterday. I felt a bit "icky" at times and still feel like I needed to lay down just to rest but otherwise I felt better than I had in a week and a half. I did feel a bit nauseous during the night but not as bad as before. This morning I feel good and was even able to eat an egg... which just the thought of two days ago made me feel bad.

I''m scared because last year I lost all my pregnancy symptoms and went in for an u/s a week later and learned the baby''s heartbeat had stopped. The second time I got pregnant I had horrible cramps and bleeding and miscarried right before 7 weeks.

I was worried yesterday and called the docs office. The triage nurse said horomones can fluctuate and enjoy the good days because it will probably come back. I really want to believe her and am praying (trying to have faith) that that is the case.

Has anyone experienced something similar and then it turned out to be okay?