does somebody know?

Well I'm going to try the pill for the first time this week (plan parent hood) and I'm not sure how my body will react to it... my sis told me that she got all emotional but I can't get emotional because my dad will find out... I just want to protect myself from pregnancy... my big question was how did you guys handle your changes, how did it feel and how long do I wait to have sex again? o.o I'm so confused with this pill thing most people don't like it or say about hormone problems 😢 I'm scared...