Serious question. I haven't experienced Braxton hicks before so I'm not sure how severe they're…

Serious question. I haven't experienced Braxton hicks before so I'm not sure how severe they're supposed to be. I'm only 30 weeks and the past few days I've had horrible drop to my knees stomach tight, baby feel like it's drop kicking my vagina pains that last for about idk how long because all I can think about is the pain I'm not counting, I'll have to sit down and not one position works because a few minutes later they're right back. Lastnight I've had a little white sticky thick kinda discharge come out and I'm really worried as I'm way to early for labor. Is it normal or should I be more concerned. ? I'm waiting on my obgyn nurse to call me back but I figured I'd ask you mammas . I never had this with my son.