Sharp pains at 33 weeks???

Most of today I have had this sharp pain happen. It is on the left side of my stomach and top part of my stomach. I was worried that it might have been contractions but it was never consistent. I mean during the day it wasn’t but now that it’s night it’s happening more often. I won’t feel it for a while then this sharp pain will come. It’s not a constant pain it’s more like a stabbing that comes every 20 seconds lasts for 5 seconds and it happens for maybe 3 minutes. I’m sure it’s a much shorter time it goes on for but it feels like forever. I don’t know how long it is in between I never looked at the time I just know it’s happening more often than I’d like it too.

Any ideas on what it is?? I tried googling it but couldn’t find much and my ob office is closed right now.