Can u be pregnant while on your menstrual?

Dee

My menstrual is acting weird it started off light then goes to medium and now back to light usually I am so heavy to the point that I’m changing out approximately every 3 to 4 hours like basically I’m always heavy from the beginning I would be light and then I become heavy then at the end I get light this time it has completely changed I’m sleeping more my stomach is a little bloated but it’s hurts im nauseous and craving things that I usually don’t eat especially rhesus pieces and ice Certain fault smells are not sitting with me I ordered pizza the day before yesterday and I couldn’t even smell it I was so disgusted you don’t understand like who doesn’t love pizza like I always eat pizza I love pizza even my husband eating more and sleeping more I don’t know any answers anybody feel the same way