Okay so me and my boyfriend had sex at the beginning of the month (4th of October) and it had been a week before that I just came off my period . Now it's been a few weeks and my period comes on around the end of the month . I'm waiting on it to come on and my stomach is already cramping with no blood . I haven't had my period yet but I'm still worried . I took hpt and it came out negative . And a few days later blood clot(s) started coming down . We used a condom and then he didn't come in me he came on me (took the condom off) I've been stressing and worrying about it so much . Maybe stress can be throwing my period off ? I need help/possible answers ASAP !