hello, I am four months post birth, had a full term still birth though. I am trying to conceive, menstrual cycle is 28 days and 5days of even blood flow and this has been consistent since after birth in October 2016. However, for this month, my flow didn t come on expected day but 2days afterwards. bright red blood and by second this has stopped. can this be implantation bleeding. Took a urine pregnancy test a day after missed period and it was negative. I would be 34 years in May. Kindly advise