Help!!

Melyda • When your love is Storng it over comes any obstacles♡
Hi my name is Melyda. I have been TTC for about 3 to 4 weeks. i am 20 and my fiance is 26.. First timer but i dont know if i should take a pregnancy test or is it too soon?? For the past 3 days i feel the urge to eat in the morning if not i feel like throwing up. Any advise Ladies! ☺(learn more on Glow: https://glowing.com)