Basically my last period was 1st April, I had sex on the 7th a few days after my period had ended, then again early hours on the 20th and 22nd, on the 21st I noticed my nipples wear extremely sensitive and sore, I have been a vegetarian for 3 years but suddenly was craving the beef that was cooking in the kitchen, my skin has suddenly got so many spots and I feel nauseas every now and then but haven’t actually been sick but also experiencing headaches, a little cramping and tiredness.. is it even possible for me to have symptoms of pregnancy at this early stage if I am pregnant or am I just overthinking this? Also if there is a possibility I am pregnant would it be from the sex I had on the 7th or could it have been from one of the other two dates? Tia for your help!