I have been getting a weird stretching feeling below my belly button and my stomach has also felt like it got tightened inside and my boobs have also been hurting. My period isn't supposed to start until between.the tenth and the fourteenth so what could this mean?

Not a pregnancy sign at this early time. Even if pregnant, the egg would have just been fertilized and would not have any noticeable size.

So it could mean a 100 things, not enough other info to go on.

If you miss your cycle, wait about 10 days to two weeks, after you are late, and then do a test.

This could be premenstrual symptoms.

You're putting on weight? Your skin is dry?

The surest sign of pregnancy is a missed period which is usually two weeks after your expected period should begin. If you missed your period by two weeks then a home pregnancy test should be used with the first mornings urination.