can i be pregnant 2 months later after giving birth???

I gave birth to my daughter 2 months ago. A week & ahalf or maybe 2 weeks ago boyfriend and I had unprotected sex used the "pullout" method. Lately I've been cramping spotting off and on, I've been getting hungry ever 5 seconds it feels like and sore nipples/breast. I am breastfeeding but my breast stopped hurting after like 4 weeks of breastfeeding along with my bleeding from afterbirth. Today my breast have been slightly tender and my left nipple is sore when my daughter feeds. I feel tired all the time because of getting up with daughter in the midnight. I have not gotten my period back yet so I have no clue when to test or if I even need to test, is it normal to be getting pregnancy signs 2 months after giving birth because I feel similar to how I felf when I first got pregnant.