while it is uncommon to conceive after having had a tubal ligation it can happen. moreover there is an increased risk of it being a tubal or ectopic pregnancy. thus you were wise to do a reliable pregnancy test given your prior history of super light flows while actually pregnant. if you develop any pregnancy symptoms your should have the test repeated by a gyn or local family planning clinic as an ectopic pregnancy can delay the production of normal amounts of hcg (pregnancy hormone). a more likely explanation for the "too light flow" would be a missed ovulation. if the pregnancy test is negative then the next most common cause of a missed period is not having ovulated that cycle. in a normal cycle estrogen is produced all month. estrogen is responsible for building up the lining of your uterus so you have something to shed each month. in a normal cycle progesterone production increases following ovulation. progesterone "stabilizes" the uterine lining in preparation for a possible implantation of a new pregnancy. if you are not pregnant that month the levels of estrogen and progesterone fall triggering the release of the uterine lining—your period. so if you do not ovulate the estrogen build up of the lining continues but without the usual ovulation associated progesterone. thus the hormone levels don't decline and the lining stays up inside the uterus—as a missed/late period. alternatively just a small amount of the top of the lining can be shed which appears as a very scant flow. causes for not ovulating are many: thyroid problems pituitary problems ovarian cysts physical stressors (e. g. sudden increases in exercise crash dieting) emotional stressors (problems with partners children finances) increased body weight anorexia rotating shifts at work etc. you mentioned a prior history of "weird periods" that were "never normal. " that might also suggest alterations in your ovulations. there is a second less common cause for not having a period--or a too light flow. in some women the estrogen levels become very low. the levels are so low that no uterine lining is available to be shed. bottom line repeat the pregnancy test if you have pregnancy signs. if it is negative then you may want to keep a menstrual calendar. if your cycles become absent for three months (or are just minimal spotting) see your gyn or clinic for follow up. certainly if you develop other symptoms such as pelvic pain (e. g. ovarian cyst) get seen promptly. if your tubes are tied its almost if not completely impossible to get pregant. periods are wierd and not really predictable. just dont assume its over yet. wear something for the next few days just to make sure its completely over.
my periods have always been weird – never normal. my latest period lasted three days and is very light. what is wrong? . i took a home pregnancy test and it was negative. i also had my tubes tied. could i possibly be pregnant despite the test?