Hi, just received positive news via about 5 pregnancy tests that I'm expecting (first test done 09/04 at 4 weeks and then one each day and 2 today with this afternoons one being strong positive) but since this morning I had some light pink and brown (first pic with the urine) and then this evening has developed into this plus since a droplet of bright pink. I also have lower back ache. Any response good or bad or your experience would be appreciated. Thank you