hello there.

i'm 20 years old and basically i'm really concerned that i may be pregnant and that i might have been for a while now and just never known-it happened to a friend of mine and i've heard about it happening quite often and they only find out when it's too late. i've got really bad period cramps even though i'm not due for about a week, i've had them for the past week as well, shooting pains in my stomach, i'm extremely tired constantly, need to wee all the time, feel sick all the time and most worryingly, when i feel around my stomach there are lumps from above my belly button up a few inches that are quite prominent. i've not missed a period since i can remember although my last period was about two weeks late and the last time i had sex it was drunken and unprotected and about two months ago, just on the very tail end of my period. 

however, along with this, about a week ago, an ex sexual partner/one night stand of mine informed me that they have chlamydia which they believe they could have caught from me, which would make sense as i've looked up a lot of the symptoms whilst waiting for an appointment at the sexual health centre (where i live it's only open once a week!!!) and i have a lot of the same symptoms-change in discharge, bleeding after sex, pain whilst weeing, pain in the lower abdomen (i'm wondering if the feeling of period cramps could be this) etc. whilst googling i've come across something called pelvic inflammatory disease, which happens when chlamydia goes undetected for a while which it is possible has happened and ohhh i don't know, i'm just wondering if anyone could help me put my mind at rest as i can't deal with another night of constantly feeling around in my stomach, scared to do anything because i think i might be heavily pregnant! i know going to the doctor would just be a lot easier but he's a family doctor who i find very judgemental and don't want to go to with something like this. 

thankyou every so much for anything you can offer me.