Worried😞

Hiya I'm 17, haven't got support from my boyfriend, will soon be moving into my own place currently 16 weeks & 1 day, I thought I felt my little monkey do a slight kick the other night, but not sure and I don't know whether I've felt it since or it has been anything else? I've tried dowloading heart beat monitors because I'm scared I'll go to my scan in 3 weeks and there will be no heart beat, I'm sure I'm not the only one with these worries, I've been getting strange pains on one side of my stomach too nothing dramatic, obviously because this is my first time I have no idea what I'm doing, and I haven't got a partner to talk about his too:/