Weird today

Okay so I know that nerves tend to react with my IBS somehow and give me bad runs but today was slightly different. My stomach pain felt like a mix between the normal pain and a slight tinge of pre period pains. Now my period isn't due for another 14 days so this confused me. I might have been imagining it since the pains feel kinda similar to me but could stress cause this? And am I okay? As I have said in my pervious posts I am on the Pill and have been for over 8 months now and I haven't had sex I only do stuff like stroke his penis, blow jobs, he eats me out and rubs my clit. So I can't be pregnant?