Has anyone else experienced pain in lower left side! I've had it for about 3 days now. I wouldn't say the pain was severe or even very painful but it is uncomfortable and noticeable also it is constant all day and night. I'm 5 weeks pregnant and this is my first pregnancy so worrying about every little thing. The doctor has also said I have a UTI and has gave me antibiotics, wasn't sure if this could be adding to the pain.