I'm currently making a Pumpkin Spice porter. I'm on day 5. I don't believe I oxygenated the wort enough so I haven't had any airlock activity. Also, I haven't seen any visual fermentation. Today I took a sample to take a gravity reading and it read 1.020. This is pretty close to the recommended final GR. Could it possibly be down this fast? Also, I tasted the sample and it was on the sweet side. I hate to toss the batch if it's actually ok but it's tough for me to say. What do you think?