Hiii! Okay so pengalaman aku, period aku mmg irregular since before pregnant, so masa nak conceive tu agak confusing jugalah, macam tak sure bila ovulation dates. Nasib baik dapat pregnant jugak after a few months of trying, tapi honestly the first sign untuk aku bukanlah missed period, tapi suddenly rasa so tired and nausea la, pastu baru aku realize dah lewat. A few of my mum friends yang juga irregular period, they also discover pregnancy through symptoms dulu rather than relying on missed period, so jangan worry lah, if you suspect you're preggy, just grab a test and see your doctor ya. Lepas yang, they can confirm and help you figure out the actual weeks! All the best, hun!