when i was her age my period did the same thing. if yall have never had sex and your "juices" didnt go inside her then she isnt pregnant. its probably her hormones. she may have to much estrogen and not enough progestren. thats what happened to me. my Gyn told me if u have way more estrogen and very little progestren your not going to have your period like you should. it will cause you to skip periods until your body builds up enough progestren to make you start it. dont worry though she cant get pregnant without having intercourse.
You're sweet and sound like a great boyfriend but she's definately not pregnant
If she is a virgin,its impossible for her to be pregnant.she needs to have intercourse.as she is still young,maybe her periods are still regulating themselfs.but if you are worried,im afraid a test is the only way to find out,but highly unlikly.I would suggest start using some form of protection,if you both decide to go down the route of having sex,all the best.
It is very unlikely that she is pregnant unless u got your "juices" inside her. You say you messed around, and if it is so that you got some inside her, then there is a posibility. But if there was northing that went inside her, then I highly doubt it...good luck
There could be a number of reasons as to why she's late, though taking a home pregnancy test as a first step should be what you do. Home pregnancy tests (Hpts) are over the counter, don't have to be any certain age to buy one. If you're super embarrassed have someone else buy it for you even. The chance of her being pregnant is very low, so stressing isn't helping and the test can put you at ease.