Positive hpt question about due date confusion?

Ive had 3 positive pregnancy tests. One yesterday and 2 today. Today I didnt use first morning urine on either and I got positives (tmi but I peed at least 3 times inbetween tge tests so my uribe was nor concentrated) one line is slighty darker than the ither but its for sure a positive. My last regular period was april 18 and I had a very short light period may 11 (im a 22 to 24 cycle). So im wondering whuch to go by as my lmp. Bwcauae im eitger almost 5 weeks or almost 8. And since I had 2 positives in a row withoyt concentrated uribe maybe my hcg levrls sre higher indicating I am further along. Any.opinions? Oh and I have been having a slight cramping that comes and foes, is thia normal?