Yes, I had mine for just a week before we used it. I got a prediction for emelin cream which, when put on the port site an hour prior, numbs it. Honestly, I was more nervous about the port than then the chemo! Once I realized how much better a port was than searching for a vein each time, it became my best friend.
I had a port put in on a Friday and then had chemo the following Tuesday. i was fine. I had the doctor write a prescription for a numbing cream that I used for each treatment. It really helped.
I had port put in and then had chemo the same day.
Your port will be fine for chemo. It is a blessing to have and doesn't hurt to have accessed. They'll spray it with a cold spray for you.
:-) I like to joke I can be plugged into the Matrix now.... AND I have the right hairdo for it, too. :-)