BFP and nervous

My self and the hubby just found out were expecting on valentines. we have always had a hard time conceiving. our first we had 5 years after trying. we tried for a second and it took 2 years and two miscarriages. this would be our third and i cant help but feel happy but afraid of loosing this one. it was our first time temping and tracking and surprised how quick we got pregnant with this app and not before. just having my fingers crossed for a healthy 9 months.