Missed period. Recovering from covid?

I tested positive for covid on April 8th and I recovered from covid on April 22nd. On 9th April I got my periods on time I was menstruating while I was infected with coivd. I have always had a normal menstrual cycle of 28-30 days and I haven't been more than 5 days late for my periods since last year June. I had protected sex on 24th of April and 1st May, I checked the condoms afterwards it was fine and the semen was caught inside it. This month I missed my periods and I'm 11days late right now. I took a pregnancy test and it came back negative. Maybe I have been overthinking or something but I feel really anxious and I have difficulty breathing. I don't think I quite have any pregnancy symptoms but I have never been this late for my periods even though I have been sexually active before. I'm worried, Am I late because I had covid and my body is still weak and recovering or are there any chances of me conceiving? is it normal to miss a month after recovering from covid?