HELP😫😫😫😫😫😫😫😫

Marie
Me and my SO were about to have sex and when he went down to perform oral sex he said I was swollen and my clitoris was bigger than normal....like really big. Today is suppose to be the last day of my period and it hasn't come(it's been on the dot for the last  4 months) could the two be related? Is that a symptom of pregnancy?