Doctor I Want Go For Ivf Next Month. My Period

Doctor I want go for ivf next month. My period was on Dec 2. I underwent hysteroscopy D&C as I have polyps on 8th day of my period. I have no pregnancy due to unexplained infertility for 13 years. My doctor gave follicle tabs, pain killers, regestron tablet. Should I take regestron tablet. I had two to three days difference in my last cycle. Can I have intercourses in this cycle? Will Regestron tablet stop our luck of conceiving this month. I am 37years old. Today I am having 13th day of my period.Please suggest me solutions doctor.