Should I trust my gut....?

I have this gut feeling that im pregnant im planning on getting a test friday... but this last like, almost 2 weeks I've been super super super nauseous. But I haven't thrown up, I've almost thrown up but as soon as I got to the bathroom it immediately went away. And my boobs are slightly sore, they itch alot! And they just seem alot bigger! Im already a 36 DDD-E naturally. An they just feel bigger. (TMI) I've also been peeing alot and I've been pretty gassy.. Ijust have this gut feeling that im pregnant and my boyfriend also thinks I am. But for those of you who have gone through this, does this sound normal? Please help. Thank you !