Hey there don't worry, seriously! You said it was your first time, so it's normal for you to be scared but if he hadn't ejaculated then I don't see how you can be pregnant.
The consistency of the vaginal discharge changes throughout the menstrual cycle so it can go from watery to clumpy to a consistency of an egg white etc. (The discharge should be like egg whites if you are ovulating).
Please just chill and wait for your period to come and you're not even late anyway. Good luck!