Help please pregnancy or period

I'm so confused I don't know if it's my period or pregnancy I am cramping just a week after sex and I felt a little sick earlier today haven't had bleeding yet and my period is irregular I can't count my days and have a straight answer i just don't know its very stressful I get the same symptoms when I'm coming on my menstrual😐☹️☹️ please help I know it's way to early to test and af better come on if it's her😖😖😖😖HELP WHAT DO YOU THINK