help please

hi, i’ve been having a lot of discharge mostly thick/sticky clear with either a lot of brown or a little mixed in. i’m 6 days passed my last period and supposed to ovulate in 2-3 days according to the app (i’ve been in the fertile window the past 3) I had period sex the third day into my period (it was heat of the moment) and was unprotected for a few seconds then he put a condom on and finished. me and him had been out the whole day and would’ve showered and used the rest room a lot throughout the day. I’ve been panicking a lot and can barely keep my mind off it terrified. I don’t know if it’s just spotting with let over blood from the period sex cause my period ended quickly after and had gotten light, i’m uneducated when it comes to implantation bleeding and i’m very scared it is cause i’ve read a lot about it on here. I just. we’d to ease my mind cause i’m very upset a lot of the time cause of this. i’m pretty regular, anything can help thank you