TTC. Past ectopic. Normal this time?

Last June i had right tube removal due to 6 wk ectopic. It was my first preg conceived naturally. Doctor checked left tube during laparoscopy and it appeared fine. I have small fibroids too. We again wanted to try now after consultation this time. Doctor suggested follicle study and after 21mm in left ovary she gave hcg shot and started drydoboon once a day as my lining was 6mm and suggested to try naturally. Now I am on Day17. We did intercourse on Day 13 to day 15. I had very thick mucus discharge too all these days. My periods are regular and 29-31 days cycle. Now I am already feeling bit nausea in the morning on and off cramps and bloating. Last time with ectopic also I felt these symptoms only. Just do not want this to happen again. Doc has suggested urine test after two weeks of the shot. Is this nausea and cramps normal this early or its the medicines? What are my chances to conceive normal this time?