Hi there. If you are inserting a penis into your vagina. that is having sex. Th penis emits small amounts of sperm that is enough to get you pregnant. Don't do this anymore! Get some condoms. As to being pregnant, well, it is doubtful. However, take a test. You have been irregular for a long time it sounds and it continues. Your hormones may be out of sync. Sometimes doctors will put someone on the pill to regulate them which may be a good route for you. So, see your doctor to discuss the irregularity once you rule out pregnancy. good luck
Right! Having an intact hymen is no guarantee against pregnancy. Where blood can come out so sperm can swim in. Since you have no signs and a negative test, you can be pretty sure that you are late from stress, moving, or even sexual excitement.