Chemcial pregnancy bleed

I have had a chemical pregnancy before, and i was getting positive pregnancy tests which over a couple days got fainter, 3 days after my expected period due date i was cramping and then bled, and it started as spotting for a couple of hours and then painful bleeding. Yesterday i got a 2-3 weeks pregnant reading on a digital test. But over last few days i have been spotting only once a day for the last 3 days. When i wipe its very light pink. Today i have been how i usually am just before a period, cranky and anger outburst. Bit crampy. Just going insane as have to wait this out, am i still pregnant, am i going through a very prolonged start to a chemical??? I just want to know for people who have had a chemcial, did you spot for a few days before you had your bleed?