Been ttc for almost a year with not luck because I wasn't ovulating right. We had sex the day after my period ended on 2/13. Took one test 2/27 at night then took another one the next day in morning and then took the three digital that afternoon. All 5 came up positive but my period isn't due for another 18 days. Am I really pregnant? Should I keep testing? My period is irregular and I can sometimes go 45 days in between