Get your wife to go to the doctors. I get pain it my chest because i have Asthma. and its also hard to breath when you 26week because her lungs are being pushed on by her other orgins.

i agree visit a doctor i am 23 weeks and i had this problem i did chest x ray and ultra sound of the leg that is because the were trying to rule out a clot in my lungs so before it gets any worst for u and the baby visit the doctor