confused!

So I had my period 10 days ago, usually its heavier for 3 to 4 days, but it was only heavy for 2 days then got lighter and ended a day sooner. I didn't teach ovulation but was suppose to ovulate 5 days ago, but now I have EWCM and it looks like im ovulating now. I have been feeling really nauseous the past 3 days on and off and feel really full when I eat. I only ate 1 thing yesterday but was sooo full. I just haven't felt that good. Is there any way I could be pregnant??