Bloody show-tmi-no picture

Hello ladies. I am 38 weeks and 3 days pregnant and woke up today with some pain before going to the toilet. It wasn't cramping or tightening and definitely wasn't contractions, it just felt like I'd been holding my pee for way to long and quite bad lower pelvic pain. 
When I wiped I had normal like discharge, creamy etc but it had streaks of brownish coloured cm in it. 
As the day has progressed I have been cramping on and off but nothing to worry about and nothing too intense. I then went to the toilet recently to find more brownish cm when I wiped and on my pant liner. 
Is this considered the bloody show? If so what does that mean? 
I went to the hospital lastnight and had checks for preeclampsia and infections etc and everything came back clear so I know this isn't an infection or anything.. But still unsure. Any advice would be greatly appreciated as I am a first time mum and not sure what to expect.