The size of the follicle at the time of rupture is important. Usually, it is 18 mm., but 16 mm. is the lowest limit and 30 mm. is the maximum limit. The endometrial thickness is also related. In your case, the size of the follicle is not in favor of any chances of conception. The follicular size can be enhanced by giving hCG
injections before rupture. You will be needing some more cycles. Your age is not very late for conception, so do not worry. You can wait till your husband is back without any worry. Good luck.