Talk to Gynecologist on Pain In Lower Body In First Month Of Pregnancy

According to my LMP i m 4 months +6 dys pregnant i m facing lower body pain since 2 weeks i perform pregnancy test on 1st March... Jis gynae ko mene apne positive result ka btaya unhon ne mjhe pain k liye ominox di aur nospa injection lgaya lkn musalsal mjhe dard uth rhe hen achanak periods me hota hai jaise pain aur aisa lgta hai periods ho jaenge. dr ne ultrasound filhal mna kiya krwana se... Kindly guide me are these type of pain is normal? Mjhe kya krna chahye koi pareshani ki bt tw nhi hai its my first pregnancy