Hi ? I started feeling movements around week 17–18, but I feel them ve…

Hi ? I started feeling movements around week 17–18, but I feel them very rarely. I can go a whole day or even two without feeling anything. Sometimes I feel them as soon as I wake up — I feel like I have a full bladder and I can hear the baby drumming on it and kind of irritatingly messing around there, and I immediately run to the bathroom. Then in the evening I might feel something like a little finger tracing my belly back and forth and that's it. For the past few days I can feel just a tiny bit in the morning and that's all (I'm already into week 19).