So for a few days u have been having tightenings/Braxton hicks then last night I was up all night in agony with back pain and today it's just as bad in my stomach so I went to the emergency docs and they have prescribed antibiotics. I had a uti on my last pregnancy and it made me go into threatened pre term labour at 30 weeks. Has anyone been on the antibiotics to treat this? If so how long does it take to clear up? I'm supposed to be in work tomorrow so i need to be on the mend ASAP!! X