Brown spotting??

One week ago I noticed I was having brown spotting. Saw my Dr and she concluded that it was just vaginal irritation from friction from having sex. A vaginal exam showed no active bleeding and ultrasound showed baby was fine.. she said once the bleeding stopped fully we could continue having sex with lube to help.. 
it slowed but never went away. Now, I'm noticing when I go #2 and wipe my vagina the brown blood discharge comes out, but no other times. I'm not constipated but my stool isn't the softest either. Could hard #2s coming out be causing the brown bloody discharge? I'm 14w 5d