a little nervous

I'm 25 weeks and I haven't felt any moments from my boy it's my first I've felt some movements prior but I don't know if there's anything I should be concerned about or not. update: I've started feeling movements today and he's 3 weeks ahead of where he should be at as far as weight but my weight isn't gaining steadily I've been gaining and losing and cuz it's my first I've been extremely cautious about what I do but with my bf I've been working and going to tons of events with him including the movies which I don't know if with all my activity if it could do harm or not

Update:he's still going strong and my due date is just around the corner can't wait