If you're referring to the sugar pills or 7 day break then this is normal. If not then no it isn't normal. If you've missed pills then you will experience break through bleeding.
Is it normal to get period cramps while on the pill?
No it isn't normal.
Spotting is very normal while on the pill. After a few months you shouldn't have any spotting.
Yes, it is normal to have brown spotting while on the pill, particularly if you have recently started taking it or have changed brands. Brown spotting while on the pill can occur in place of a regular period.
yes
Yes skipping periods is perfectly normal. Some women don't have there period at all while on the pill.
about three days into your 'white' section of your pills is still normal
No. You should see your OBGYN.
It is normal to have light periods or no period at all while birth control.
Not in most cases, if you have been on the pill for a while it can take a few days for your periods to become normal.
It is normal for many women not to have monthly breakthrough bleeding while taking Birth Control Pills.
You will find that your period is lighter when you are on the pill (or patch or injections).