Symptoms ?

I'm only 4 weeks today. I had light bleeding a day after ovulation that lasted 2-3 days which I've never had nor experienced. Then randomly at 9dpo started getting nausea, very hungry and kinda moody. About three days ago I started getting a lot of saliva, I'm tried but can't sleep, emotional but no sore breast. And cramps that come on and off mainly when I lay on my side. Yesterday I had to left my shirt up because I just felt uncomfortable with it on & I told my boyfriend to move his arm off my belly. Idk why because it's too early to be uncomfortable with things touching my belly.