wondering what it can be

hi you guys. i have been very nervous, im scared that i might be pregnant. i was wondering if white clear stuff is normal, & what is it? every morning i wake up to wet underwear.. i am curious to know why i have it. is it normal? i really dislike waking up to white clear stuff. sometimes it's sticky. it's annoying. can someone please explain to me what it is because I am so nervous to know what it can mean.