Anxious

Earlier this year I had an ectopic and my left tube was removed. I have PCOS so my cycles are irregular. Last week I took a test on cd 49 and it was negative so i started to take provera to start a period. I felt off yesterday, still had one day left of provera, so I took another test and it was positive. This is the same situation as when I was pregnant earlier this year. Called my ob right away and had a blood test done. My levels came back at 7 which is positive but super low. Took another home test today and the line seemed lighter than yesterday’s. Need to repeat blood work tomorrow to hopefully see a rise in levels but I’m so anxious that it will drop and this baby won’t stick. Previous to the pregnancy earlier this year I had a miscarriage in 2011 and have been trying for 7 years to get pregnant. I just don’t know how I should feel cuz I feel hopeless that this one isn’t going to work out.