What to do for delayed periods and symptoms like bloating and nausea after unprotected sex? - #54684

Hello doctor, I'm 22 years..I wanted to consult regarding a delayed period. My last menstrual period was from 26–30 March. I had sexual intercourse on 17th–20th April (used condoms in some instances and withdrawal method otherwise). Today is 3rd May and I still haven’t got my periods (cycle day ~38). I took a home pregnancy test today early morning, and it was negative. Over the past few days I experienced symptoms like bloating, nausea after eating, frequent urge to pass stool (sometimes loose motions), one episode of very light pink spotting, leg cramps, disturbed sleep, and occasional giddiness. Currently, most symptoms have reduced except occasional bowel urge and mild weakness and bloating. I would like to know: * Could this be just a delayed cycle due to hormonal imbalance? * Do I need to repeat the pregnancy test or do any blood tests? * What should I do to induce periods? Thank you.