Can you be pregnant without any symptoms?

My period is a week late, but I have no symptoms of pregnancy. The only “odd” thing I’ve noticed, is the fact that I’m super bloated and have been for the past week or so.

My partner and I had a bit of a lapse in judgement, where we had another round of sex, a few minutes after the first, without him going to the bathroom and rinsing - this happened just before my fertile time.

I am prone to an irregular period (usually late by a few days every month) but at least then I get PMS. This month around my breasts aren’t even a little sore.

Should I test?