Need advice

So basically I just found out I'm pregnant but long story short I only remember my last period was 11th of July but I have 22 day cycles and I was due on again on the 1st of August...

Basically I can't remember if I came on because July the 16th I got a uti infection and was really poorly then I had a wedding on the 18th I still had my uti but was feeling alot better but then I started a new job on the 31st of July and don't remember being on my period in the 1st then I worked out that if I did have it the 1st the I would be due the 23rd of August for my next period and I don't rememver getting that I'm so confused I could be 3 weeks 7 weeks or 11 weeks I have no symptoms what so ever apart from the odd cramp and sore boobs..... Xx