TWO PERIODS IN A MONTH (TWICE)

Hi,

SO im 23 and have been on birth control for a year or so now, usually i am good about taking the pill regularly but recently i have messed up due to changes like moving and a new job and so on. sometimes i take it at irregular times and sometimes i forget all together. last month i dont remember the exact dates and how many days between but i had two periods which i thought was really weird, then this month my period was about a week late it wasnt heavy or anything it was completely normal, just late. And so that period ended id say about a week and a half ago. Then yesterday afternoon it starts again. I really dislike everything that goes along with being on my period when its normal, so im kind of irritated that this is happening. HAHA. i looked in to it online and really couldnt find anything that matched what was happening to me, all i really found was people saying they werent on birth control or were new to birth control and spotting between periods. I dont really thing those describe what im going through. My mom thinks my period problem has to do with my birth control so im trying to just figuire out a way i can possibly get my cycle back on track. and hopefully get back to one period a month. If anyone knows of what i should do or could try, Id sincerely appreciate it. Thankyou