Prolactin Meds & late period


I just started bromocriptine to lower my prolactin levels. I’ve been taking 2.5mg for the last two and half weeks. My period has been consistent for the last 5 years or so. Could the bromocriptine make my period late? Or should I take a pregnancy test? We are supposed to start <a href="">ivf</a> next month. We suffer from MF infertility and were only given a 5% chance of conceiving naturally.