Ttc could I end up preg ?

I ovulate from April 7 thru the 12th and my bf n i dtd the 7th and 8th ....we tried it again today the 11th and tmi but it was way tighter than the 7th and 8th and a lot of white sticky discharge and my bf said it feels different than ever b4 and more stuffed

So could anyone explain cuz Google is giving me a headache. What does this mean ? Also on the 9th I had a cramping feeling on my right side