Hello, i use a period calculator to monitor my cycles. At the end of November i had an irregular cycle, and i say that because it was extra light and not as heavy and painful as usual. Beginning of December, 6 days after my cycle, i started to spotted for a few days on and off. nothing painful or even red. Just light pink and really only when i wiped. My cycle was supposed to come around the 23rd of December but it decided to come 13 days late. Now again this month its basically doing the same thing and right now im 6 days late. Should i be worried?