So, me and my boyfriend yesterday gave eachother our virginities....without a condom. Stupid, I know (he and I are almost 100% sure that we have no STDs). It was very heat of the moment. And he pretty much just went in and went out (he was only in there for about a minute or two).... He did NOT cum in me....although he got very very close, but stopped himself. He did precum in me and I had given him a hand job earlier....I tried to clean myself out the best I could....could I be pregnant? I'm also in my fertile window...if there is a chance can you please tell me how high....thank you so much

UPDATE:

It's been 3 days and for like most of it I have felt nauseous (at all times, except for just after I ate). Today was the worst. I almost threw up during work and I could barely eat because everything seemed gross or I just couldnt bring myself to eat. I also have just been very hormonal and bitchy....I'm not sure if pregnancy symptoms can happen this fast