I have a few questions..

Jessica
I found out this morning that I am pregnant and I just have a few questions as I am 21 and not too sure everything there is to know about babies and birth. 
1. Should I start taking prenatal right now? 
2. what's the best brand for prenatals? 
3. Was anyone else as scared and clueless as me? 
4. When should I book a doctors appointment? 
5. I stand on my feet all day for my job, will this effect me in anyway later down my pregnancy? 
6. Is there anything I should be doing right now that I'm not? 
7. Will eating certain foods harm anything? 
I'll probably have more questions later on, these just come to mind.