23 weeks pregnant & Braxton Hicks

I’m 23 weeks pregnant and I’ve noticed today I’ve been having a lot of contractions, I’m guessing they are Braxton Hicks... They aren’t extremely painful but are definitely uncomfortable and I just have to breathe through them. But is it normal to have lower back pain with them??? I’ve just noticed that my back pain is worse since the contractions have started. And I’ve been having lightening crotch and pressure in my lower abdomen/ vagina.😐