More precisely, the particle is a quantized manifestation of a field (the Higgs field) that generates mass through its interaction with other particles.
1 When you stop taking it, you will get your period within 2 to 3 days. 2  However, this is not 100% effective. 3  Women have reported bleeding or spotting while taking progestogen pills. 4  There are now contraceptive shots and even contraceptive implants that stop your period altogether for months in a row. There are in fact contraceptive pills made specifically to stop your period. 2  They are called extended-cycle pills. 3  You would normally take these continuously for three to six months, and then take placebos for a week during which you would get your period.
Your periods may be irregular when you first come off the pill, and you should allow up to three months for your natural menstrual cycle to re-establish itself fully. This is because the pill contains the hormones that stop ovulation (the release of an egg) each month. The first period after stopping the pill is known as a withdrawal bleed. The next period after this withdrawal bleed is your first natural period.