TMI!! Don't look if sqimish

I'm on cycle day 19. I had a longer then normal period with a few extra days of spotting. I had a DNC back in Feb. so I thought that might be the reason even though I had a completely normal cycle in March. I was also on birth control at a point. I am no longer on birth control but taking low dose aspirin daily as well as prenatal vitamins for blood clot disorder that is elevated during pregnancy. Which is what caused my previous miscarriage. I'm really starting to worry because 3 days ago I woke up with pinkish discharge and it went away and then yesterday I had brown discharge and it went away. And then today I woke up with brown discharge again. However it did not stop today and I just wiped and this is what I saw. Is it a possibility that this could be a side effect of the aspirin? I haven't been able to find anything that supports that theory. And I've been told it's too early for implantation bleeding. I really just want to know what's going on. Because I would really like to get pregnant as soon as possible.