Confused..

Mari • Nathanael Lee Baez <3
Okay so yesterday I had just found out that im 5 weeks pregnant. I took home tests and they came out negative. So I decided to go to the doctors and check it out and well they told me I was about 5 weeks. They also told me it was too soon for a ultrasound they want to wait for the baby to have a heart beat. Well today I took a pregnancy test just because and it came out negative should I be worried or should I just continue with what the doctor told me and not stress about? Any advice.