Can any moms tell me what back labor was like?

Angela • Baby Boy Born July 20th 2016💙 Baby Girl Born August 24th 2018 🎀 Baby Girl #2 Born January 2022 🎀 🌈 Baby Boy #2 born May 17th 2024 💙

I’m on my second pregnancy, I’m 36 weeks and 2cm dilated but the last two days my back has been hurting more, it’s not like contractions because it’s a constant pain it doesn’t come and go. It started yesterday and I thought it was from cleaning Saturday but it’s worse today. I’m not in tears but it’s very uncomfortable, I’ve been wearing my belly brace and have a heating pad on it. I would imagine if it was back labor it would hurt more? I’ve never had it so I have no idea, I would love to hear from others who have experienced it and can tell me what it felt like. I don’t think it is back labor but I don’t want to ignore it in the case that it may be. TIA