Hi Ashnant
Without being able to see your discharge it is difficult for me to say for sure.
It is not unusual for you CM to increase late in pregnancy and needing to change your liner every time you go to the toilet would not be unusual. However it is also possible that your waters are leaking. What concerns me a little is that you say it smells a little like after you DTD. Women often describe the smell of your fluid like semen. Now to put your mind at ease. Leaking fluid will not harm your baby in the short term (a couple of days or so). If you only need liners then your fluid (if it is fluid) is not leaking too much. Normally your fluid does replenish itself but only slowly. A slow leak will often repair itself.
So here is what I suggest you do.
Do not panic, everything is going to be ok
If you are still leaking tomorrow put a pad on in the morning and then go to a hospital, they can test to see if it is fluid or not. There are a couple of tests they can do but the most common one involves taking a swab of the fluid (they can take from your pad). They can see the result within a few seconds.
Again do not panic, your baby will be fine.