Could I be pregnant or is it something else

So lately I’ve been having health problems that are kinda like pregnancy symptoms and I’m a little stressed and worried if this is all in my head cause I’m wishing to be pregnant. So a week and a half ago I lost about five to six pounds and I was so good at keeping my weight around 105-107 and 108 but I’m now down to 100-102. And I have no clue how. I eat like I’m supposed to. But lately I just haven’t been feeling hungry all the time like normal but when I do get hungry it just hits me out of nowhere. I’ve been having to go pee more often also. And not to mention I’ve been having uti like symptoms also. But it’s like there’s no burning but only I have the urge to go pee and either I can’t but it’s only a little bit and I have the feeling of not emptying my bladder all the way. Sorry for TMI but last night and this morning during sex with my fiancé I felt like a muscle tightening in the lower left side of my abdomen. I feel sick some days and I’ve been craving French fries and peach juice. Could it be? Or am I crazy? Spread the love and baby dust guys. ( not to mention the symptoms will go away and then come back and my period is this upcoming Sunday.