confused

Rubie

Hi guys, I am so confused right now. I missed my period for 5 days now and I always had regular period before, never ever late even for a day. I did a pregnancy test (Life brand) on the day when my period expected to be due. At first I thought it was negative but then i saw a very faint line. I tried two more tests (clear blue and first response brand) the next day and I could see the lines again but they were both very faint. I am so confused whether I am pregnant or not. I did another first response test (day 3 of late period) and this time I saw two lines but the positive line is even more faint than the previous day. This time I didn't use the first morning urine though so I wonder how accurate the test was. I attached the pictures of my tests below. Can someone give me advice since I am very confused, don't know whats going on right now.