Question: is there any issue in climbing the steps at first trimester?
Answer: Hi! No, climbing stairs is ok as long as you are careful. I used it till 8th month but I was careful and i had to climb only 2 floors. In the last few months a shift in the center of gravity of your body happens so you have to be careful about your balance, make sure you have a support railing you can hold and climb and be careful, it should be ok! :)