Has anyone gotten a faint positive that has gotten darker and go on to have some brown spotting? For reference: I have sensitive test strips (I buy Proov and bird&be) so I found out I was pregnant at 3w4d. Confirmed with blood test with 33hcg. At 3w5d I had two episodes of brown spotting. I contributed it to straining while trying to poop (lovely early sign of pregnancy and constipation). On 3w6d had my second lab and my hcg was 85. So more than double. No spotting until I was to bed at 9:30pm. Once again only on tissue while wiping after peeing. I have been continuing to use my test strips and they are getting darker(pic for reference-bottom is today). Editing to add: today is 4w2d. Would one contribute the brown spotting as implantation bleed?