I am 18 years old and I have been noticing a lot of weight gain recently, I eat healthy and I excererise regularly.. at first I thought this could be a sign of pregnancy because I did have unprotected sex but my boyfriend always pulls out. I had gotten my period twice this month and they were 10 days apart, My period hasn't been this irregular before but both periods were regular length and the flow was normal. I am always tired and have been having constant head aches. If anyone has any ideas or information please help me!!

Since you had your period, most likely it is not pregnancy.

You realize that "pull out" is the worst method of birth control and most people who only use that become pregnant soon. There is often sperm in the early fluids, and guys miss pulling out early enough often.

So if you are not now, start planning on it unless you actually start using some form of real birth control.