Any insight?

I am going on my 43rd day since my last period. My average cycle is 35 days. My longest cycle was 41 days in January, since I started to keep track of my menstruation. I am having cramps and swollen beasts. I feel like sometimes I have started my period but it turna out to be mucus. I have been having cramps for about a week and a half. I feel like I get queezy sometimes, but then again I think it may be all in my head. I don't want to overthink the possibility, but has anyone had similar experiences? And it going both ways?