Hi I'm 20 yrs old. I'm also sexually active. I experienced a light brown discharge at a time that I'm expecting my period.. it lasted for 4 days.. after a week I took a home pregnancy test and it was negative. I'm quite doubtful about the result because I'm not sure if I did d procdure right. So after 2 days I went to to a clinic and have another pregnancy test (serum). And d result was again
Negative.
I also had a miscarriage about a year ago and I didn't have any treatment after that. D bleeding lasted for 2-3 days. I never had a chance to have a checkup with my doc because I don't have money. After few months I start feeling pain at the lower left part (near the kidneys.. im actually don't know what part of the body)
I'm worried about my health :( idnt know if I'm pregnant or if I have any kind of illness. So please help me. At least give me any ideas

This could have been nothing more than an off period. Wait two weeks and test again using first morning urine. If the test is negative you are most likely not pregnant.

Cont.

Just few days ago my breast was swollen but it didn't darken. And also have a lot of white (mens?) coming out while having sex but it didn't smell funny

You had white men coming out? I don't understand. You SHOULD have vaginal lubrication during sex. That's normal.

Again, there is no way to diagnose pregnancy other than taking a pregnancy test.