Unusual discharge? Confused.

Hey ladies, this might be a silly question but I'm genuinely confused.

So basically normally after my partner and I BD there is always fluid that leaks out of me which I know is the seminal fluid and its normal. Well this is mixed in with sticky egg white discharge too but what I'm unsure about is the fact there is always small white bits that look like small wet pieces of tissue paper.

I've spoken to my doctor about this and she gave me a tablet last month and it appeared to not occur again until now.

I'm not itchy or anything down below and it doesn't burn to urinate either as it would in case of a UTI.

Any suggestions as to what this white discharge is or what I can do to prevent it?