Help. .

Okay so I was suppose to be off my period the 26th of last month. I haven't even started yet. I have lots of cravings,mood,and all kinds of pregnancy signs. I've looked up every thing and there all signs. I'm thinking about takin a test tomorrow ? That's a full week after being late if the date I was already suppose to be off. 
So.  If I get a positive ..
I need help. How do I tell my parents ? I'm 16. And my boyfriends 18. I do have a job. And not sure if this helps but my parents know the baby would be in great hands and I'm very mature for my age.please only support me. And do not throw me down. After all,we're all glow family and this sight is suppose to be for support only. If there's nothing nice to say,please keep it to yourself. Thank you in advance to my amazing glow family !