Just a quick question!

Okay so I’m 24 weeks pregnant with baby number two. I’m writing to you because I just have a concern. I started having menstrual like cramps yesterday for a few hours. No bleeding or vaginal discharge. I sat in a warm bath and I felt better. I called the on call doctor since it was like 130 am. But she just said it seemed like it was just round ligament pains. Which I didn’t disagree with. So Took Tylenol and haven’t taken it since last night so over 15 hours ago. I’m still feeling my baby girl kick and stuff but today I feel better but I have a very dull pain on my lower left side. Is this normal? It has come and gone all day. It doesn’t bother me too much just I know it’s there. You know? Should I be concerned? Anyone experienced this? I’m assuming it is ligament pain but I just want someone else to put my mind at ease a bit. Thanks in advanced!