My period is usually every 3 weeks it used to be every 4! If my period was to be 3 weeks I would be late by 10 days! Test is negative!

If I go by every 4weeks means I’m only 3 days late so when would be best to check do u think a test would show postive by now or should I wait until a week for best result!

Symptoms- light cramping throughout the day .. headaches nausea.. and going to the toilet a lot both ways when usually I only go once every two days!

Hoping for positives xx