Please help me.

Please read all of this and comment, I know it’s long but I’m very worried.

I am seventeen. My first three pregnancies were on birth control. I was 13 when I first got pregnant. It was aborted without my consent. I got pregnant again at 15, but I miscarried. I finished high school early recently since I skipped a year, and my parents and I have never had a good relationship so I moved in with my boyfriend. We’re trying really hard to make it on our own, with a combined salary of around $27,000 a year before taxes. I’ve only been moved out for about 3 months, and we’re already almost completely “on our feet” sort of speak. So much that we’ve already started saving for a better apartment and a car. Soon after I moved in I got pregnant and miscarried. We’ve been madly in love for 2 years and we’re going to get married this September. After I miscarried, I decided we should just have a baby. We both love each other more than anything, and we would both do anything for our child and want a baby together. We both knew I would probably keep accidentally getting pregnant anyways, so I got off birth control and we started trying. I got my regular period the twenty-sixth of April, got the bar out the 3rd of May (it had also been causing me a lot of problems due to the high amount of hormones) and got a surprise period May 12th-16th which I’ve read is common after getting the bar out. I ovulated afterwards (I forget which day now, but I remember knowing because my cm and slight cramping.) Six dpo, I had very very very light spotting—only showed up when I wiped. It lasted two days and stopped. I took a pregnancy test the day my period was supposed to start, but it was starch white. So I took the loss for the month and waited for my period. 4 days later, still no period, figured I’d go to the doctor. My regular doctor wasn’t there that day, so I was given a pee test (even though I specifically asked for a blood test and told them I’d already gotten a negative on the pee test. She said “our urine test is very accurate” even though my own sister got false negatives from our town hospital for two different pregnancies. Keep in mind I live in small town Iowa.) I got a negative, and the doctor that talked to me made me feel even worse. She said “Why did you suspect pregnancy?” And I said, “My period is four days late. My breasts hurt, I’ve been nauseous, and a lot of light cramping to the right of my uterus.” “Are you trying to get pregnant?” (In a HIGHLY judgmental way, as I’m 17.) So I immediately responded no. And she said, “Well, your symptoms and lack of period sound like pregnancy, but you might just be late. Wait longer and take some more home pregnancy tests.” I now haven’t had a period in over seven weeks, and still haven’t had a positive pregnancy test, although I haven’t tried for 2 weeks as I get one every pay day. Because of not just the doctor’s, but the nurse whom I asked for a blood test from, lack of concern and obvious judgment, I don’t want to go back at all. I did start having worse cramps, but my sister came over and I explained the situation, and she says she’s sure I’m pregnant, and that she felt the same moderate cramping early in all of her four pregnancies. But I’m starting to get worried. I look, feel, and act as a women who’s almost halfway through her first trimester. Some days my breasts and nipples are so swollen and tender they can’t be touched. I haven’t been able to sustain my intense food cravings, added to the fact that I’m craving foods I wouldn’t normally like (like savory meats) and having aversions and nausea to what I usually like. I’m finally getting past how incredibly exhausted I’ve been, but still peeing every 15 minutes, intense mood swings/irritability, and my abdomen is distended. Actually, my abdomen is more distended and firm than I feel it should be. No matter how much my boyfriend says I just look pregnant, I feel like it’s almost TOO distended for almost 8 weeks. (I had three, growingly severe cases of PID after getting, and failing to successfully treat multiple times, chlamydia after I was raped almost a year ago. Because of that, I’m always worried about ectopic pregnancy.) That, combined with symptoms that have become so obvious that my coworkers have all already assumed I am pregnant. To make things even more complicated and worry some, I’m almost positive I ovulated the 23rd of June, as my cm changed, slight cramps, and it was the day I would’ve been expected to ovulate if I would’ve had my period. Then, the 30th of June I started spotting again, the exact same amount of barely there as last time. Since then, my pregnancy symptoms have only increased. I’m so confused and worried and I don’t want to go back to my town’s hospital since it’s honestly horrible, I need help.