Opinions/ reassurance needed

I took a random test last Friday and at first it was negative... after 5 mins I went to take it out of my pocket too throw away and there was a faint positive!

Next morning I took two test and Clear blue said not pregnant (digital week indicator) but first response had a pink line with positive.

Took these tests this morning...

Thoughts? I’ll be 4 weeks...

My first pregnancy (my son is 8 months) my test was a very strong positive from first response and I was about 3/4 weeks.

I guess the clear blue week test has got me worried a little x