Help!

Little back story, I have a 3 year old daughter & I had a miscarriage back in January. I had some issues afterwards which led me to have periodic ultrasounds on my uterus and ovaries to make sure everything was okay. I got the all clear a few months ago to try again and we have been. Well I had an ultrasound on the 16th. My OB said that there was a really big follicle on my left ovary, meaning I should have ovulated within the next 3 days.

Now my question is, what were your first pregnancy symptoms (if you’ve been pregnant before). We’re these symptoms before a missed period? I’ve been having to pee a lot lately and I’ve had some mild cramping. My period isn’t due for 11 days. & this app says my ovulation day was the 25th so I’m super confused. Bc I have no idea when I actually ovulated. 🤦🏼‍♀️