Advice...

Kristin • Engaged to an amazing man ❤i have a boy and a girl he has a son. we had our first together 10/1/16 Kendall Jean💖💜💙
So i will be 20 weeks tomorrow and so far this has been a normal pregnancy beside being in pain lol. But anyways i have noticed alot more discharge, sometimes its yellowish and sometimes its clear i mean it like a half dollar size every time i pee, it smells but like a weird smell tmi i know, its not like a gross smeel its hard to explain.. should i be worried??