birth control
"This is a summary of my experience so far

Month1
Week1 - 1 period, 2 to 4 light period, 5 normal, 6 light period, 7 spotting
Week2 - 1 to 3 normal, 4 spotting, 5 bb, 6 to 7 spotting
Week3 - 1 to 4 spotting, 5 to 7 normal
Week4 - 1 to 3 normal, 4 normal, 5 light period, 6 light period, 7 light period

Month2
Week1 - 1 light period, 2 to 7 normal
Week2 - 1 to 2 normal, 3 light spotting, 4 spotting, 5 light bb, 6 to 7 bb
Week3 - 1 bb and cried for no reason, 2 bb

For reference,
bb - breakthrough bleeding
normal - no periods"