help!!

So me and my boyfriend have sex 3/4 times a week, and he always wears a condom! I'm not on the pill at the moment due to being on other medication... but my period is late by a week and I'm really starting to worry! I haven't had any symptoms of pregnancy! But last month I was on utovlan( delays your period) and so once I came off them I had my period in the middle of the month instead of having it at the end! Could my period still happen at the end of the month? Or do you think it's best to go and get a pregnancy test? 😩😩