Cried all Night...

In 2009 I had an ectopic pregnancy which was tubal and they had to remove one of my tubes. It was just confirmed on last Monday(10/31) at the clinic that I am pregnant. They attempted to perform an abdominal ultrasound in which they didn't see anything. I'm assuming I was approximately 4 weeks 1 day. The first day of my last period was Sept.30th. I was referred to an OB. Who took some blood work on Thursday (11/3) and my hcg was 1009. I went back on Monday to do another ultrasound but this time a transvaginal and still there was no detection of a gestational sac or anything. The sonographer did say that my uterine lining was thickening which is what it's suppose to do. They took more bloodwork to check my levels again, they are suppose to call me today with the results. I am terrified. After that appointment I was very upset and crying non-stop and I continued to cry all night. I am so scared. I've been praying to God because I know He's in control. This has just brought so much stress in my life. I keep telling myself I  just can't go through this again. Has anyone ever experienced this? I haven't really been hurting.. I've had mild cramps on and off which aren't painful I can just feel it.