Hi I am 21 and have had irregular periods my entire life I hane not had a period since about march 16th or so and the last few days my nipples have been really sore. I was just wondering if I should take a pregnancy test. I don't have any insurance so I can go c my obgyn so I'd like some advice thanks. By the way I already have a 2 yr old and my fiance have been trying to conceive for about 6 months now.