Faint line

So I have been taking a test every day a few a day. They are the one step internet cheapie tests. Well I have taken a few a day since Friday. I know today is only Sunday but the line hasn't got any darker. It has stayed super faint. Only a few came up negative and I took that to be because I drank allot. But two positive today one yesterday and one Friday all positive. My husband bought me one from dollar tree today just encase but I read those are less sensitive and are 25ml unlike the one I got which are 10ml. I have all the signs of pregnancy. My AF is due tomorrow and I have a Dr appointment Tuesday due to me being on clomid. I didn't even think I ovulated this month since I didn't get any true positive opks. So I need some advice or opinions on this. Could my ht be wrong and I'm not pregnant or is it just I'm not to far along for them to get as dark as I would like.