vaginapagina | overwhelmed..eeh..help? (Reply)

so. ive looked online about this but all the info i find doesnt make sense to me and is just overwhelming. so im hoping somebody here can help, =]

im taking ortho tri cyclen lo BC so my period is usually around a 28-day cycle (today is day 22), which means day 14 of the pill pack is the day i ovulate, right? but i read somewhere that BC pills prevent ovulation, which is why it prevents pregnancy..my gyno didnt tell me that when i got them so i never knew how they prevented pregnancy. they just do. so that means i dont ovulate? then how can one get pregnant while being on the pill? does this only happen if a pill is missed? im so confused!

my bf and i usually use condoms as well as the pill but on around day 18 we had sex with no condom (he came inside me). this was the first time we ever had sex without a condom. i got scared about getting pregnant after and i looked up info online, or tried to, but everything i came across made me more and more confused. is ovulation day the only day i can get pregnant? or does none of that ovulation stuff apply cuz im on the pill? i read that ovulation takes place for only 24 hours. what happens for the other 6 days before i get my period? is it even possible for me to be pregnant?

i think thats all the questions i have. i probably missed some but hopefully somebody can help me clear things up. today is the day i get my period but it might not come til tomorrow or the next day. im kinda scared im pregnant but i dont think i really am. i just..i dont know! haha im so overwhelmed with info and so confused by all of it. (i was going to post this on amipregnant community but i felt the survey didnt really fit into what i was asking..)

thank you all so much in advance, sorry for the long post! =)