i dont understand why i cant get pregnant?and when i have sex with my boyfriend i bleed and then afterwards i see little white balls coming out of my vagina with the blood wen i wipe i dont bleed any more after i wipe my vagina. and for some reason i have my period every other month or maybe in the middle if changing into the next month i AM TRYING TO GET PREGNANT and i cant seem to get there what could be the reason if anyone knows the answer please get back to me asap thanks your help