Tell me when do the early signs of pregnancy start?

Missed period: Classic pregnancy symptoms usually don’t begin until the day your period is missed or after that. These can include: tender or swollen breasts, nausea or vomiting; lack of a period; increased frequency of urination; headaches, insomnia, fatigue. Moodiness, mild cramping, food cravings; passing gas; enlarging waist line. Etc. A home pregnancy test is the most accurate way to tell if pregnant.