Unwanted comments/advice

Is anyone else sick of people constantly saying things like “oh you think you’re tired now just wait…” or when you say something about being uncomfortable sleeping or baby kicking “oh just wait that’s nothing- wait til you’re in labor…” The most recent comment came from coworkers who I genuinely like. I was excited after finishing a birthing class with my husband- we learned a lot of great information. I was sharing some of the details with my coworkers about breathing and different positions during labor. They both just laughed and said “yeah ok that will go out the window.” It just feels very defeating. I’m trying to enjoy and make the most out of my pregnancy but I’m just so tired of hearing how I have no idea how I’m “about to give up my life.” How do you all deal with this? So far I just ignore and vent to my husband.