what are these symptoms of?

Te
Hello I'm new here n I'm 39, are these symptoms of over stressed, UTI, menopause, STD, C, or pregnancy? Had normal 4 day period march 17-20. On march 26 I had sex then again on ovulation April 2, april 8, had black spots then red spotting in afternoon April 16 hours later had light period next morning was regular that night it completely stopped (never did that) oh but early in morning was another small dark spot that day I was feeling very dizzy/light head on and off for a few days, one early morning it was so bad I couldn't get out of bed for few minutes because I felt like I'd hit the floor. Eventually I did make checkup family doctor appointment. Then felt better some days, sex again April 26 he saw blood he said it was dark I didn't see it soon after felt little dizzy. Sometimes had heart burn at night as I fall asleep. Dizziness went away doctor has no idea n sending me get some routine an extra Blood test (going week). Been seeing little creamy or whatever type of cervical mucus almost everyday. Had sex (n wasn't dry at all) almost a week ago next day 8 feel burning after I pee so I thought Uti but it stopped n I don't have to go often n it doesn't burn often, it stops for hours and even about 24 hours, it started burning out of no where as I was driving. It lasts any where from few minutes to few hours feeling between 1% being close to nothing to 5% ok burning. I remembered I'm due for gyn appointment so now I'm thinking of making appointment tomorrow.(hate going) I still get heart burn after going to bed not sure if it's every night. One night I felt like vomiting for about a second as I was on my stomach n heart burn. Oh sex, is pull out method. If all the possibilities I'd rather it be pregnancy or Uti, I've also been google searching. We say if pregnancy happens it happens, I'd rather it happen. Thanks sorry It's long, thinking/ranting as I go. 
Recap-4 day period march 17-20 sex April 2, 8 ovulation on April 2, sex April 8, period for 2 days then dizzy, sex April 26 saw blood n dizzy starts then sex in may few times burning started last time and 7 days late. Usual period is 3-4 days always pull out.