I was on catheter first pregnancy for about a day or two. This was after birth. Then for my second pregnancy on my first trimester I had the urge to pee but I cant. I had to be in out hosp, on catheter. They find out that the urine tract there's blockage and very tiny due to the uterus. It was indeed pressure for me. It took me weeks to learn how to train myself to not use the catheter. I had to drink lots of water, every 30 to 1 hr to visit rest room. My trick was to use bidet and slowly try to pee. I dont stress myself. I let it out slow and I calm myself with breathing technic. It may or may not work for you. But if you cannot pee, the urine hold in our body can cause kidney issue. Try to speak to your gynae/doctor for other alternative method. Remember the more you stress, your body cannot do what it wants to do. So take it easy.
itsallabout_mytwokids