Girl thing, please help?

Hi, first off I think you could still be irregular. My periods are always irregular...and second thing is I would recommend trying a tampon again...the first time I used one it felt wrong to, but now tampons are all I use. I would use Playtex it's the best brand to me...start with a light flow tampon or a regular. Don't be afraid to waste a few. Read the directions thoroughly (Platex explains it very well and has pictures) If it hurts you are you can feel it inside you it isn't in correct...pull it out and try another one...you may feel it for awhile just try walking around for a bit and see if that helps...hope this helps you and good luck :)