Help please


So I had sex recently he didn’t pull out like I expected him too. I checked this app and I found out that i was ovulating not only that but I had sex on my most fertile day. This was a complete surprise to me and the sex was heat of the moment. I’m experiencing some symptoms and they’re driving me crazy. I’ve had little twinges in my sides and lower stomach , my boobs feel like boulders, i have hot flashes, and I am peeing almost triple of what I normally do, im queasy throughout the day and I have INSANE constant headaches. I’m starving every 2 hours & I’m extremely extremely tired and bloated. i also had some spotting yesterday What could this be?