PLEASE HELP

Hi ladies just wondering if anyone can help me i had a miscarriage last year and ttc again iv been useing the cheep pregnancy tests the past week,,  had a faint pink line but then disappears so I presume the means it's negative but yesterday I took a clear blue it had a faint pregnant line just thought nothing of it but glanced at it in the morning and I could see it a lot better ,, took a cheap test this morning and It was just negative does anyone no what I should do,, I'm confused I think that I could be pregnant but not sure,, I seem to be going for a wee quiet alot and feeling sickly please if anyone can help I would really appreciate it. X