Could i be pregnant?

ve

Today is day 35 since i started my period and i shouldve started today but i haven’t. I’m kinda freaking out because i haven’t been cramping like i usually do before my period and like i said it’s already been day 35. I had sex 2 times last month the 26 and 27th but both times we used a condom. I thought i started Saturday but i guess it was a false alarm, it wasn’t necessarily blood but it was a reddish spot. If that makes any sense. And i also kinda been having tummy aches lately, but i have been cutting down on my eating and excersicing , and drinking a lot of water lately. So maybe it’s just a change in my hormone balance or something ? I’m not sure . Please help!