pigpig
I felt very tired when I got pregnant ga. I went to yoga class and was yawning while I was doing yoga. The instructor told me I looked very pale and asked me to go home. At that time I was less than 4 weeks pregnant ja.
If your last period was 13th Dec you are now almost 4 weeks pregnant la. You should feel slightly different (tired, sometimes tummy ache, 谷胸etc). If you feel that I think you should take a test. Good luck!