Why do i have these bumps on my ? (I'm scared....)?

ok so im 15 and i just noticed my are lumpy and like bumpy. they usually rnt ths bad...idl if the cold caused ths while i was changing my clothes or wat but im scared. the past 2 days ive felt sick to my stomach...i have a sore throat which iis going away and i got my period tuesday night...and its pretty much almost over....almost. so i only had it for a few days but im just starting out so im very irregular rite now. it seems like im pregnant! but ive never had b4 lol is there any other solution?