Sorry to say but it sounds a lot like you just might be PG. Color changes, size changes and dark lines (sometimes looks or are stretchmarks) and the food cravings and then wanting nothing the next day. If I were you I would one buy a HPT and two figure out when AF was suppose to visit. Then I would take that information and go to the DR to get a Double confirmation or figure out what is going on with the hormones! You have a choice of either a blood test or urine and you can ask for the test you prefer (no matter what the grouchy nurse says) but one piece of information for you; blood is more accurate! Good luck to you and please take this seriously even if you don't know if you want to have a baby. Cut the caffine, no smoking and try to not sit with or near people that are smoking- don't be rude about it just move to another place or ask to sit in the non-smoking section. And please don't delay you need to know because time is precious when it comes to making a decision like this. TRUST YOUR JUDGEMENT ONLY!