One week late....😬

Siobhan
AF Is currently a week late. I've done 3 PT and they have all been negative. 
I had my implant removed in October, and since then had a period every month,  cycle varying between 24-34 days. But now I'm on 'day 43' of my cycle.
I didn't get any of my period symptoms in the week leading up to when my period was due, and my body doesn't feel any different.
I'm so confused as I don't know whether I am or not. I don't know if it's to early to do a test! I'm TTC bubba#1 so all this is new for me. Any advice on when is best to do another pregnancy test, or if something is wrong!? 
I think I may of had a very very early stage miscarriage at the end of March as I bled when my period wasn't due and some of it was white and a bit stringy like raw chicken! Soz TMI.  But I never had it confirmed with a doctor or a pregnancy test. 
Very anxious to no what's happening to me! 😩Â