Help don't want to loose baby

Maricruz • First time mommy due in June 😍
I am 24 weeks and 2 days today and a little over 30 minutes I have been having this sharp pain in my left side  near my pelvic bone and as it comes it goes. They are a few minutes apart.. What could it be? I'm a first time mommy and the littlest things scare me so please I need advice.