Newbie 2018!

Hey June 2018 mummies! 
 I've been on this app for a little while now so thought I would give it a go joining in and introducing myself- I'm Heidi, I'm 22 (just!) and found out last week on my birthday..! That was 5 weeks along. I took 2 clear blue digital week tests over each morning and both were positive with 2-3 weeks since conception however I'm struggling to come to terms as I don't feel at all pregnant and have had zero symptoms! I am a manager at a preschool and have been working with children for 6 years including being a private nanny in Australia for 8/9 months! All ages of children 6 weeks to 5 years. Although I work with children I am so scared about having a tiny little one to care for, anyone relate?! 
Any comments would be much appreciated as I haven't told many people yet so feel quite alone! Sorry for the essay and congrats everyone else on their bfp's!
Much love!