Aubra

So I just started taking aubra 3 weeks ago, and had sex a week after starting it, and he came inside me. I was supposed to start my period 2 days ago but I just took my last pill yesterday so I’m not too worried about it being 2 days late. But I’ve been experiencing extreme pelvic pain/cramps and I’ve been feeling sick. Are these normal side effects of the pill or should I be worried?