Ok my cycle for August came on the 31st. My cycle for September came a week early on the 19th wasn't really much of a period. This month today is the 21st an I still have not started? Took a pregnancy test on the 19th it was negative. My cycle are irregular but this has never happened before. Should I go see a doctor? What should I do? Yes I'm sexually active me an my boyfriend never use condoms. Im not on birth control or anything like that. When I was ovulating we had sex. I ovulated oct 5th

Anyone woman who has unprotected sex often, has a good chance of getting pregnant ANYTIME. If your last HPT showed negative, then your pregnancy hormones haven't kicked in yet, and until they do, you will read negative.

Oct 19 was too early to take a test. If your last period was Sept 19, you shouldn't take a test until the 1st week In Nov.

Ohk. Thanks a lot. I have been having really bad headaches, can I take any kind if medicine