Hi there.
First thing,u need 2 give the bc pills some time to get in2 ur system because they take a while 2 kick in-im on the progesteron only pill & dont have periods.Being on the pill does not affect ur chances of every having a child so dont b under the illusion that it does.
Secondly,so ur late on ur period? U may need 2 take a test because other then the usual symptoms-sore breasts,morning sickness etc. There's no other way of knowing.But,if u have an irregular cycle anyway,it cud b down 2 this.R their any clinics near u which do free pregnany tests?
I think ur doctor isnt very good if u need 2 come here 2 ask about how to deal with the pain-shouldnt she/he b getting to the bottom of the problem.U shud try femminax cos theyre really effective (dunno if they sell them in the usa) if not,try ibuprofen or paracetamol.A nice hot bath helps to reduce those horrible cramps as does a heated pad or hot water bottle which u can put on ur tummy.
Best wishes & feel better soon
liz