How is it living with your SO?

I’m 23 and this is the first time I lived with someone that I was in a relationship with.

I didn’t know what to expect and of course I thought things would be okay because our relationship was going so wonderfully before we took the next step to get a place together.

Things are different now. I believe we both get annoyed with each other. I’m not really feeling the way I used to for him(not sure if that’s normal). I KNOW that relationships are no walk in the park, and that it requires lots of work etc, but ahh I don’t know what to do or how to make things better. I am pregnant by the way so I do want to make things work .. I’ve always been told that living with someone allows you to see that persons true colors, bad habits, whether or not you could live in the same household etc ..

Anybody been in the same situation before? Any advice ??