How Long Does Mifepristone And Zitotec Take To Terminate Pregnancy?

My beta hcg level is 240.5. My last lmp was on feb13 again it shld be on march13. But i had a doubt and visited the dr. . she said it was mild positive. Since i was to terminate my pregnancy my dr told me to take mt pill 200mg one at night and zitotec tab 2 tab at empty stomach for 4 days. My question is after how many days having this pill will i get my periods. Will these will be effective to to stop my pregnancy