My first pregnancy as well. I'm now 27 weeks and find myself googling away almost every week lol. I don't know what to expect so every symptom I have I google just to make sure everything is ok! Lol... Pregnancy is one of those things where a lot of weird things may happen to your body. Some things may be alarming but as long as you tell your symptoms to your midwife and she says it's normal then its nothing to worry about. Eat lots of healthy meals and don't skip either. Drink lots of water :)
Oh man. I'm 18 right now and I had the hardest time at the beginning. I was VERY sick. I couldn't even keep water down. However, everyone is different, so just take it day by day and find out what works for you and what doesn't.