Early pregnancy

Hey all! I got my IUD removed June 22nd after not periods for 2 years. I had my first period July 15th and it lasted 5 days. My period tracker averages out my cycles (which have only been one so far) and estimated I would have ovulated the 1st-6th. I started taking hpt's during that time, all BFN until the 11th. I received a faint positive! I used First Response for this. I took another one the next morning and also got another positive, this time a tad darker. I went to the doctor, they did a urine test and blood test and both positive! I want so badly to be excited but am worried I found out early. I am not due for my period until the 19th of my period tracker is right. I just took a Clearblue test and got a super faint positive on this one. I'm so worried about having a chemical pregnancy. Any insight?