Sprintec is used to stop you from becoming unexpectedly pregnant. It works in three ways to make sure you’re protected.
The combined birth control pill alters ovulation and may stop it altogether. Ovulation is when an egg is released from your ovaries, ready for fertilization.
Sprintec also affects your uterine wall. This lining builds up and then comes away when you have your period. But the “period” you have when you’re using hormonal birth control (like Sprintec) isn’t the same as a normal period, because the lining doesn’t build up in the same way. It’s technically a withdrawal bleed. Women who use Sprintec find that their withdrawal bleed is lighter and usually easier to deal with than a true period.
The hormones in the pill also thicken the mucus in your cervix. This makes it harder for a sperm to reach your egg (if you are ovulating) and lowers the chance of a pregnancy.