I'm so nervous (read)

So I just found out not long ago I'm pregnant 11 week when I found out I'm now 12. Going to the doctors today. But im nervous there going to tell me I'm not pregnant anymore. I am still confused on the test so I when to the pregnancy clinic and when we did it it looked negative and we had to wait the 3 minute but after like a few seconds close to a minute it looked negative then bamb the line popped up dark still a little fainter then the other line. Is it just my body isnt producing enough hgc. It's been since August since I've had a period. But I'm now getting that weird crampy feeling not as a period but still have to pee alot.. it's like the little one is on my blatter dancing lol. But I guess it's just with me having so much miscarriages and everything I'm scared I'm going to lose this one I'm trying everything not to and my car sickness went away after a few weeks. I have an appointment at 1. But when I called again to confirm the guy said i didnt need an appointment and we could just walk in. I'll keep updates on everything but anyone else have that feeling or is it just me...