Side of belly pains

Kausha

Okay ladies. I'm 17 weeks with my second child, but for the past few days I've had this intense sharp pain on my side of my belly. It started on the right. Then switched to the left and is now going on both sides. It gets really intense and then dies off at first but as it continues it becomes constant... I haven't gone in yet because it was going away the first few times, but this time it's been lasting for awhile... It's not like the round ligament pain I had with my daughter.... Any ideas or suggestions? As soon as my so gets home from work I'm having him take me in... TIA