I thank I may be prego

Bc last night me and my fiancé eat and went to bed and we were laying there talking and out of no were I started getting all this wired cramping in stomach pain and he put a little preacher on my abdoman and it falt like some one had kiked me but he did not and now I have been up for 3hours and my tummy is just a little wired filling and I am craving a lot of wired stuff the past 3 weeks and he asked me seen all of this started and I sad like 2/3 weeks a go and he sad u could not be because u just hat off ur pired and my pired a are normally heavy and this was barely an bleeding at all so if u have an idea what it could be plezz let me know