Are movements consistent to start with?

Willow

Hi guys hope someone can help. I’m currently 18+2 with my first. Last week for about 4 days in a row I swear I could feel baby moving. Now for about the last 4 days I’ve felt nothing apart from mild cramping all day today. Is it normal for the movement to be inconsistent to start with? I don’t want to pester the midwife if it’s something totally normal