Pregnancy Syhmptons

My sympthons r… Im gaining weight faster than I ever have I just got a pair of shoes this past christm,as now I cant fit them wehn I can usually keep a pair of shoes for like 2 years.. and I have bluish veins in my breast adn they are sore to the touch and they look sagger and my appetite has increased maorly I eat like 6 or 7 times a day and I pee like every 20 mins or so I dont through up but I feel sick to my stomach and I have stomach pains..like my stomach muscles are sore and then yesterday I saw a tiny spot of blood on my panties and Im like w week late on my period… and Im very tried I have no energy my body is achey but when I try to go to sleep sometimes its hard cause I cant get comfortable but I took two pregnancy tests and they said I was pregnant but they were cheap so should I worry or what?