Mene apne bf k sath mere periods aane ke 3 din pehle sex kiya pr humne sex bhi nhi kiya srf usne andr hi dala tha or wo pura andr bhi nhi gya tha pr uska sperm thoda sa andr ki taraf nikl gya or ab mujhe periods nhi aae to kya isse pregnant ho skte hai plz aap iska answer jrur dena