could i be pregnant?

So me and my boyfriend have engaged in oral sex countless times, usually with him just going down on me. But this time after he went down on me i went down on him and swallowed all of his sperm, i didn’t keep it in my mouth for long instead it all went down my throat. After this we french kissed and saliva was swapped between us. Later we ate food and drank some smoothies and didn’t engages in any oral sex for a couple of hours. We then proceeded to make our way home and he went down on me again and this time he stuck his tongue inside me. Is there any chance that i could get pregnant from any of this? I’m driving myself crazy and I’m really paranoid that I might be pregnant. I am currently ovulating as well so could that increase my chances? Thoughts? Thanks xx