6. 2 weeks pregnant and heartbeat is 122 ive had miscarriages so im scared of another one.im asking if now we have seen heartbeat if chances have decr?

Statistically, yes: It's well established in first trimester pregnancies that detecting a heartbeat (and the presence of a yolk sac) makes the statistical risk much lower. The actual risk is affected by the woman's age and prior history. I published an article on this in 1997, see the link below. Best wishes. http://humrep.oxfordjournals.org/content/12/12/2820.full.pdf

Sounds positive: Being an optimist, having a heart beat on Ultrasound is promising. I think the best thing is observation, having a well balanced healthy diet, gentle exercise and prompt follow up with your doctor.