HELPPPP

Righttt where do I start. I came on my period last Friday (14th) I had some high opks just before I came on, come on and it was light, had a few pains here and there. Nothing major. Lasted 4 days. Been suffering with really itchy nipples, never had that before. Took a test this morning and two more since then and it looks like there’s really really fine lines. But definitely there and pink. What could this mean? I am so confused.