I had back pain for a few days and have kept active and did exercises. Woke up this morning feeling fine but bit stiff then after about an hour I developed a really intense pain down my leg which is really uncomfortable and mega painful can feel that it is coming from top of my bum lower back to left yet pain past few days was on other side. I'm 10 weeks pregnant can't take anything other than paracetamol can I? HelP, what else can I do? Will it go away before tomorrow.