Is it hormones?

One of my friends have been "trying" for their 2nd child since I got pregnant with my first. All they've done the whole time is complain that she wasn't getting pregnant even though they weren't truly trying the way I did. They just weren't preventing. I'm assuming it's hormones to feel like she's trying to compete? My whole pregnancy all she's done is bitch that she wanted her second kid because they don't want an age gap when I had to try so hard for my first. She's complained so much making me feel like I couldn't be happy during my time and now expects me to just up and down for her when all she does is complain about her kid now and money.

Is this normal to feel kind of sad and annoyed?