Opinions ⁉️⁉️⁉️

Hello ladies! I had sex last month on the 14th & 15th, days right after my period. According to nurture I am 4 weeks & 4 days pregnant. Last week I had very little brown stringy discharge & I was expecting to get my period but I never did, I'm still waiting. My periods are irregular.. different times of the month, but I get it EVERY month. I've had occasional nausea but it hasn't been terrible. I've been getting pimples which I never get on my forehead & I've been really hungry and craving certain foods but my breasts are fine & I don't feel any different! Any opinions? Thank you in advance:)