Pregnancy symptoms?

So I've been TTC for 3 cycles.. the average cycle length is 35 days but I have them anywhere from 32 to 36 days. I ovulated on CD 17 or 18 (July 29 or 30). Around 6-7 DPO I woke up with symptoms of a UTI (my vagina burned and I felt like I constantly needed to urinate but very little would come out and it was painful.) so I called my GYN and he prescribed me pregnancy safe antibiotics since he knows we are trying. Well 7-8 DPO I started feeling sharp twinges in my lower abdominal/pelvic region.. they weren't content but kind of stuck in one place for a minute or two then stopped and went somewhere else. I've also had very light cramping and milky white CM (not thick or thin, somewhere in between.) I could just be symptom spotting.. but I have never felt those twinges before. What do y'all think? Have you experienced any similar symptoms before a BFP?