On bc pills 3w ,bleeding on and off really heavy w/ severe lower abdominal pain. mostly when i apply pressure to urine. no pain from my vagina ?

Need to see GYN MD: You need to see your GYN MD who has been giving you the oral contraceptives to determine the source of your irregular bleeding, and pain. Abdominal pain always require a MD visit to give you an accurate answer.

Adjustment: A woman's body needs to adjust to the hormones in birth control pills, especially when starting new. During that adjustment period there can be more or less of breakthrough bleeding. Typically, this subsides after 2 or 3 cycles and either disappears completely or at least is bearable. If it isn't, switching to a birth control with different content in hormones can be tried.