Good day everyone, yesterday at 11 pm I started feeling my stomach tig…

Good day everyone, yesterday at 11 pm I started feeling my stomach tighten for about 2-3 minutes and then it stopped, after that it got better, I slept normally through the night, and today I'm not even in pain, is this just practice contractions? Please tell me, I don't even know how to react, water and a tampon didn't help. And one more question, are the postpartum waters odorless or do they smell like something?