late ovulation, could i be pregnant?

kim

im pretty sure i had late ovulation this month, i never really tracked my ovulation really only when i had my period, but acouple days before my period was suppose to start i had clear discharge, stringy, and sometimes creamy. and my period has been lately late for a couple of days and then show or sometimes on time. and i usually have brown discharge leading up to my period, so this month i didnt and i was worried, but i had sex the day my period was suppose to show according to the flo app, but on <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> my period was 3 days later i believe, and he did cum in me, we were planning to have a baby, but ive read so many times that its impossible to have a baby without conceiving on your ovulation days or it was a 3% chance. but my period is now 5-7 days late, according to different apps, my nipples are lightly sensitive but never really sensitive, i didnt really get cramps when my period was suppose to come, and pregnancy test are ALL negative, so im not sure if i should wait 1 more week, or im not too sure when to take a test if i was to get pregnant before my period