TTC baby number one no luck after 10 months😟

Siân
Me and my partner have been trying to conceive for over 10 months around about 3 months ago I could of sworn I was pregnant as I was having all the symptoms and was 6 weeks late! And was only having very faint lines, however my period came and it was awful the worst period I have ever experienced and each month is now the same? Anybody for any ideas what it could be🙁