You are in your second trimester at 14 weeks. The risk of miscarriage does decrease substantially after 12 weeks and even as soon as you hear your babies heart beat through a fetal doppler. It does not mean you are gauranteed not to have a miscarriage, just that it is less likely for your body to reject the fetus.
You'll be in your second at 14weeks
Yes the 2nd trimester starts at the 13th or 14th week
Im pretty sure its 13 or 14 weeks depending on tye doctor