Regular 28day cycle.sex day 14.day 21/22 black/brown minimal bleed on wiping.now day 23.lower abdominal pain&dark red bleed?period or implantation?!

Hard to guess: A positive pregnancy test can tell a woman that PRIOR spotting was actually implantation spotting. It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a reliable result about 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period.