Big part of me hopes I am...

Hey Ya'll, so I am about 11 dpo and for the last 4 or so days I have had various bizaar symptoms that I don't normally have after ovulation. It started out w/ AF like cramps and constantly feeling like it was about to start, which never happens just 1 week after ovulation. It then got to being a pulling, muscle straining feeling at about 8dpo. I have had cramps on and off like AF since and when I lay down for bed I have gotten ever so slight heartburn and cannot sleep. My husband and I DTD 1dpo (according to my tracker) and usually he is careful but decided not to "put his raincoat on" before and didn't pull out or anything. Shortly after that I had a bizaar high sex drive then the cramps started about 6 or 7 days later. I have taken PTs (mostly 20-25ng/ml dollar store ones) and gotten negs. I still have 2 days to (possible) AF but I have an off cycle that can be 25-37 days so I am going nuts trying to wait. Also the night before last I had a SHARP pain in my right side in the middle of the night, felt like someone was pulling on my ligament, have had hip and thigh/leg aches and last night I had a horrible back ache all across my lower back radiating up that was only improved by laying on my back. Also, at about 9dpo I had internal shaky feelings on and off but wasn't very visibly shaky and really bad diarrhea all day with some solid stools and then I took a shower and after I got a feverish feeling and had to layer up for a few hours and felt kinda nauseous... I had a flu shot for nursing school (preservative free one at about 3dpo) but have never had these symptoms in my 9 or 10 years of periods or any other time ive gotten the flu shot (with preservatives, which usually made me sicker immediately after but not almost a week later). I feel fine in the mornings and some days nausea will come and go but only enough to make my throat tighten a little and lose interest in food. I have been oddly calm (usually a stressful mess that is not very patient to anyone). I don't take BC, just use condoms, but I took a 10ng/ml PT this morning and I think it was negative (forgot to check it and went back and I think it was an evap line). I've also eaten a lot during morning and mid day/afternoon but its not really that I'm hungry, just not satisfied until I eat a crap ton of food. I know that none of you can tell me if I'm pregnant or not, I just wanna know, if the symptoms continue should I be worried for pregnancy or cysts? Or something else. My boobs are not tender at all and some people say my sense of smell is strong because they don't smell what I smell and sex has been a little more tender than usual but then other times I feel totally symptoms free as I go about my day... Sorry if I'm sharing too much but I just wanna make sure you all are well informed so I get the best guesses. With being in nursing school money is really tight right now (I dont work and my husband just had Dr visits that were $$$$) so I really wanna wait to go to the Dr because every time I go I feel like an idiot because it ends up being nothing. But the back aches last night were pretty dang horrible and the cramping can get pretty bad at night (sometimes it hurts so bad in my back and pelvis that I can't even tell if I have pain anywhere else!). Thanks for any help you can offer! I've never been pregnant so I have no idea if I'm just crazy or if it could be pregnancy or something else and I just hate this waiting game! **I also had random bouts of dizziness at 8&9dpo and I was bloated up until today but it wasn't my usual "I feel fat bloated" more like "I look 4 months pregnant" pudge. Lol. And I think I had slightly yellow discharge yesterday but it was so slight, it coulda been in my head. Lol.