I'm on my 3rd pack, actually i'm on the 4 day break of my third p...

I'm on my 3rd pack, actually i'm on the 4 day break of my third pack so i have my period now. The first month of the pill was horrible, i got breakthrough bleeding the first day of the second week and it lasted for TWO WEEKS. it was just heavy enough to be a complete NUISANCE!!! i had to wear pads and tampons for two weeks and my poor boyfriend was deprived!!! then i got a week break and right into pmsing and my normal period. The normal alloted period is fine, it's short and relatively painless. The 2nd month i had no breakthrough bleeding except for like 3 days (NOT 2 WEEKS!)...and the 3rd month was just a repeat of the 1st month... i had two weeks of breakthrough bleeding...my poor boyfriend i swear. Now i'm about to start taking the 4th pack and my 21st birthday is this month and i will be SOO EXTREMELY UPSET if i get the 2week breakthrough bleeding this month. My boobs have been tender probably the whole time, but it's like they are getting bigger (WHICH I DONT MIND!!)...not so bad mood swings, not so bad headaches. but i get nightmares alot more than i used to. I've actually noticed that my hunger is raging at nighttime and not so much during the day like it used to. My body also kind of feels like it's womaning out... like my stomach is gettting tighter and my hips bigger and my boobs bigger, i'm going to give it this month to see if i get the breakthrough bleeding. if i do, i'm going to switch to yaz and give that a try. I can't afford all the ruined underwear and i cant please the deprived boyfriend :(