Asking Very Important Question If Someone Expirience It

Bakit po Kaya hindi tumitigil ang bleeding ko complete namn ang vitamins at medication ko I'm using Duphaston 3.a day for 2wiks en Utrogestan 200mg suppository for 2x a day for 2wiks. I'm now 13 weeks pregnant and patapos na ko s medication ko I started using it April 15. Ano po kayang dahilan hndi namn ako ipen cervix at okay namn si Baby nung nag ultrasound kami nung 13 and 15 ???