Periods

Does anyone else have irregular periods?! Mine are always so weird! For the longest time they were 28 days exactly, and then one month it was 30! And then back to 28 for one month and then it was 30 for about 5 months. Now it's between 29 and 34 days. Any suggestions on what I should do to help control it? It's so annoying! I hate not knowing when it's going to come.