Irregular cycle?

Stephanie

Hi ladies, I always have regular cycle 28-30 days every month ever since I can remember..

But the past 4 months, it suddenly became super irregular ranging from 35-38 days. But I still ovulate each month (confirmed by OPK and BBT charting)

Anyone knows why this happened? Should I go and have it checked out or can I still get pregnant easily with an irregular cycle? Thanks!!