Tensing uterus - 15weeks

Hi, I'd like to ask for opinion. This is my first pregnancy and I have no idea how I should feel.

This morning my belly was asymmetrical, like my uterus popped out on the left side of my belly, low (I guess because my bladder was full after the night of sleep). Also my uterus got tense two times, so I could touch it and it felt like a rock. No pain or anything, just strange sensation, I'd say interesting and it lasted for like 4/5 seconds. Now we have evening and I got similar situation. One time I needed to go to the bathroom, and it tensed for 3/4 seconds. Now I'm lying on my left side, and my uterus is hidden but again when it gets tense I can put my hand on it and feel it clearly, and it also last few seconds.

The feeling I get now in my belly is like a plain hunger, haha.

I know there are supposed to be some Brixton contractions, but isn't it too early? Also, now I'm abroad, and it's rather problematic to find doctor here. I'm nervous.

Also I have a lot of discharge. I had this problem long before this day, but now I feel like the bigger leakings are connected to tensing.

What do you think?