What Are The Side Effects Of Susten?

We have had the IVF process done ie. the embryo's were transferred on 28th July and then my wife was advised to use Crinone Gel until 09th Aug the day when she has to do the B-HCG test. This test result was positive and also the subsequent B-HCG test done on 11th Aug. However we were not able to procure Crinone 8% gel so we have been asked to use Susten. After using the same for a couple of days my wife felt some discharge like mucuous/sticky feeling and got scared. Please advise if its the effect of Susten.