Why do I get these little pains underneath my chest?

Answers:

I get my spell about once every two months is that typical?

No enough info. How old-fashioned are you? Where are your pains in addition to your chest?

Though you're not exceedingly specific about your problem, it could be that your bra is too tight (or your nouns size is too small). Remeasure your sizes, and go shopping (or grasp bra extenders, available in sewing stores/sections of stores). When your bra strip is really a lot too small, it starts compressing your rib pen, which can be mildly annoying at first to extremely painful at the worst.

How exactly do u know when u are pregnant? Like what are the symtoms?

Because I'd have a feeling remiss if I didn't say this--chest pains can be pretty serious, so don't abate to call a doctor if you are worried.

Now that that's out of the path... :-) It could be that your bra is too tight. It might also be a digestive thing--is it often after you chomp through, drink soda, or eat spot on things? If you've had a cold not long, I've found that having coughed greatly can make my chest/ribs hurt for a few weeks.

Depending on where on earth it is that you are hurting, it could be enlarged lymph nodes, a tender spleen, gallbladder, stomach, or any number of body parts.

webmd.com has rather symptom checker that might have some more option for you to consider.