I am not sure what injection to thicken your endometrium that you are talking about???

Not everyone on clomid has a trigger shot of HCG. It is most frequently used for IUI - but sometimes in women who have long standing fertility issues/age factors etc. Certainly it's not par for the course. Many women on clomid will successfully conceive by timing intercourse second daily from when their follies reach maturity. Often just using OPK's is all that is used. Some doctors don't even suggest using OPK's. However not everyone on clomid will ovulate CD13-15. I am one of them! It didn't matter what cd's I took my clomid or how high the doseage I did not ovulate until CD19-24.