Heartbroken, devastated and confused

6 months ago my son was born still sleeping, crushed, hurt, devastated and sad from all that happened, I'm healing, but still standing. October my cycle wasn't a real cycle it was overly light, so I took a test and it was negative, I felt sad but I was okay, November roles around I took a test on the 18th it was negative just making sure I could drink a little at my girls night out, then my cycle never came so I waited and then I took a test that evening 11/25, it was positive this made my heart smile but still nervous I waited until the next morning to test again still positive....called the dr. After that holiday and she wanted me to get my hormone levels checked n have them faxed over, but in between time I just wanted to see if these really cheap test would say I was pregnant so on 12/2 I tested again and they came back positive. At this point I'm even more happy so I figured what the heck let's see how far long I am so on 12/4 I test again it's showed yes I was pregnant and I was 2-3 weeks along. Then my results came in and not the triage nurse but the doctor called me, thinking this was odd but Ole well.my levels were a high 300 then it dropped to 130, she says this isn't a normal pregnancy and I may start bleeding anytime in other words my cycle should be coming on, she said we will test again in 2 weeks but she doesn't have a good feeling and she apologize to me.....I am beyond words, I'm heartbroken, devastated and confused...I had to leave work, I couldn't be tough yesterday so I went home and cried myself to sleep. Has this happened to anyone else, I mean wow it been 6 months since our little man passed away and where the heck is my cycle.