It's been months since "last year". I'm concerned, thinking that you seem to be having this for more than three months now.
Malaking tulong pa rin (in trying to understand your situation) ang pag-mention mo of having a boyfriend and being intimate. Na-realize ko, while reading, how personal hygiene and health are affected when one engages into a more physical, even sexual level of intimacy...and there's a greater risk with females. Mild, pero malalim ang infected area ah...involving the cervix as well as the vagina.
Anyway, do you remember what pill did you take? How many days did you take it? When you experienced bleeding, a week after your period, hindi yon side effect...but a direct effect of using the pill. I hope you can find the time to learn more about your body and how the pill will affect it. Ang Hormonal Contraceptives o Pills ay may pinakamataas na risk ng pagkaroon ng Cancer at ito ay isang uri ng Abortifacient, leading to Chemical Abortion. Details here in related post.
The only home remedy na sure ako na effective at walang side effect...is: (1) Do not put anything, especially if you don't fully understand what they're really for, (2) Just keep it clean and dry (and well ventilated). (3) When you wash, be sure that you are using clean water. (4) Understand the information on feminine wash that you plan to use (5) Rinse well and dab dry with a clean towel, (6) If you're at home and have complete privacy...or you're going to bed...you might want to consider not wearing underwear (this is from an Ob-Gyn doctor).
Please be patient and don't rush to having instant remedies...or it may worsen the situation or make the discomfort longer than it's supposed to be. Summer na ngayon, mainit, kaya in-season ang mga infections. Nagpapawis kasi tayo at pag nagiging moist ang mga areas ng body like armpits and thighs...nagbi-breed ang germs kaya nauuwi sa infection.
For your peace of mind and reassurance, sana it's possible for you to talk about this with a close female family member who cares about you, like your mother, older sister or aunt.