Not sure what to think here, first pregnancy.

So I am new to all of this. I got two positives last Monday (missed period was Friday the prior week & a positive digital on Thursday). I took another line test Saturday to see if the line was getting darker (my sister who’s had 1 child recommended it to see, thinking darker line means higher HCG). So it was more faint than my other two positives, so I naturally got a little concerned. (Side note: I’ve been drink half my weight in fluid ounces, since I found out I was pregnant so my urine was very dilute) I talked to my Dr and she wants to pull HCG blood and redraw in 48hr to see if it has increased to determine if this is a viable pregnancy. I was to go in for my draw today, but they ended up closing at noon because of blizzard conditions. So I thought no problem I’ll go tomorrow. But just now I urinated and when I wiped there was some pink/red blood. I automatically worry that is means a likely miscarriage?

Also to note: on Sunday after my missed period I had a teeny tiny bit of pink blood a couple times which I chalked up to implantation bleeding, so I am quite concerned about this bleeding now? I have a pic but not sure if it is okay to post it? I know some people are sensitive to things like blood/bodily fluids.