I?m also taking medroxyprogesterone prescribed by my doctor I was told after the fifth day to stop taking it and see if I had a period and if not is there a chance I could be pregnant? And I also had an estradiol level check of 41.7 adult female: follicular phase 12.5 - 166.0 ovulation phase 85.8 - 498.0 luteal phase 43.8 - 211.0 postmenopausal 4300.0 what does the pregnancy first trimester means? Am I pregnant? And I also I haven?t had a period for months as well which is why I was prescribed the meds.