Im 28 weeks pregnant for the second time ( my son is 12 so it feels like this is my first first time ) compared to the first time this Pregnancy has been a breeze (maybe because its a girl this time around!!) Except... Last night i started feeling incredibly uncomfortable - lower back pain (like ive never had), she feels so low and heavy i feel constipated and so uncomfortable...i know that it sounds just like 3rd trimester problems... But havent felt this uncomfortable entire time.. Started last night around 10 and still as bad!!! Could i be in labour?? Should I make a appointment to go to my gynie this morning??