ftm weird pains

So I'm a ftm and I'll be 17 weeks with my baby girl Tuesday..anyway I've been feeling her move a little and stuff but I started having weird pains in the middle of my stomach it was like sharp stabbing pains that would last for a few seconds then go away for about 4 seconds and come right back..this went on for about 8 mins then just stopped..my question is what could it be..lol sorry if it's a dumb question..