Earliest pregnancy symptom


My period is late almost 8 days

Im feeling like sick cold..fever ans I use the bathroom every 2 hours im feeling hungry always but i dont want to eat to gain weight lol even tired.. im nervous and stress... I have pain like period contration but no blood. I want to get my period back... m not ready to have 3 kids... my baby is just 7 month old... i have 3 years old daughter... i dont know what to do... I dont even understand how is possible for me to get pregnant? I had sex in August but not everyday.. My husband didnt keep inside me.. lol he take out.. 😕😔im so nervous now