i woke up this morning fine i had a bath and i went to clean the bath after and bent over and as i stood up i had a pain in my lower back in the middle and ever since its been hurting alot to the point where im hobbling around when walking if i try to stand up straight it hurts more. sat down im fine it doesnt hurt at all. if i walk around for abit the pain subsides slighty but doesnt go away and when i sit down and get up again it comes back. im 6 weeks pregnant is there anything to worry about?