Pls I need help with this circle issue

Kimberly
Hello ladies pls am really confused last December 2013 I had my period on the 9th and the next period 30th December 2014 so how do I count my circle? And during those days I feel am pregnant bcos I had some sign but wen i checked with home pregnancy test it says negative! Thanks ladies 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors