Concern or Normal?! Maybe TMI...

Jemma • 27, first pregnancy with partner 👶🏼🍼
I'm 5 weeks 2 days and have been experiencing what is believed to be 'spotting' since approx Friday. Yesterday I lost pink/light red watery discharge but that was the only time, since then I have had small amounts of brown watery/mucus type discharge only when I wipe. For instance I had some of the brown stuff this morning and have not had one bit since.. However just had a bowel movement (that was quite loose and painful) and again had more brown stuff. I was advised by duty doctors to rest and not lift anything today which I have adhered to.
I'm seeing my GP tomorrow morning who will hopefully refer me to early pregnancy unit. 
Anyone else experienced this as I am worried and scared stiff!