Thanks for writing in.
As you have got treated for chlamydia, I am sure it is working for you. You have noticed the decrease in pain during urination and itching.
I would suggest you not to squeeze the base of your penis to check for any discharge.
There is every possibility that you are getting excited and there is little amount of ejaculatory fluid coming out through urethra
If there was no discharge earlier, it is less likely to be an infection now.
Please use condoms during sex responsibly.
Hope this helps.