Period like pain

So I had this Saturday and again now today. I’m experiencing pain in my lower back, buttocks (both sides and not sciatica because I have that already), and my lower abdomen that feels like period cramps. My Braxton Hicks are painless (as they should be) and I have been experiencing those since 16 weeks with this baby and had them a bunch with my first too. My abdomen has also been extremely uncomfortable all day. Should I be concerned about this pain? It’s not timeable so I’m not sure if it’s contractions or what? I’m afraid if I call they’ll tell me to go in and I have my toddler all alone as my boyfriend works second shift. 29+1 if it matters.